10211220202020 has 48 divisors (see below), whose sum is σ = 29834521637760. Its totient is φ = 2604601094656.

The previous prime is 10211220201967. The next prime is 10211220202081. The reversal of 10211220202020 is 2020202211201.

It is a super-3 number, since 3×10211220202020³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3699716085 + ... + 3699718844.

It is an arithmetic number, because the mean of its divisors is an integer number (621552534120).

Almost surely, 2^{10211220202020} is an apocalyptic number.

10211220202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211220202020 is an abundant number, since it is smaller than the sum of its proper divisors (19623301435740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10211220202020 is a wasteful number, since it uses less digits than its factorization.

10211220202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7399434964 (or 7399434962 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10211220202020 its reverse (2020202211201), we get a palindrome (12231422413221).

The spelling of 10211220202020 in words is "ten trillion, two hundred eleven billion, two hundred twenty million, two hundred two thousand, twenty".