1010201220 has 120 divisors (see below), whose sum is σ = 3621799104. Its totient is φ = 230900544.

The previous prime is 1010201219. The next prime is 1010201243. The reversal of 1010201220 is 221020101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33202 + ... + 55881.

Almost surely, 2^1010201220 is an apocalyptic number.

1010201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010201220 is an abundant number, since it is smaller than the sum of its proper divisors (2611597884).

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

1010201220 is a wasteful number, since it uses less digits than its factorization.

1010201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89111 (or 89100 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1010201220 is about 31783.6627845187. The cubic root of 1010201220 is about 1003.3889089890.

Adding to 1010201220 its reverse (221020101), we get a palindrome (1231221321).

The spelling of 1010201220 in words is "one billion, ten million, two hundred one thousand, two hundred twenty".