11222020221000 has 64 divisors (see below), whose sum is σ = 35012703098880. Its totient is φ = 2992538724800.

The previous prime is 11222020220977. The next prime is 11222020221017. The reversal of 11222020221000 is 12202022211.

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, 1870333704 + ... + 1870339703.

It is an arithmetic number, because the mean of its divisors is an integer number (547073485920).

Almost surely, 2^{11222020221000} is an apocalyptic number.

11222020221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222020221000 is an abundant number, since it is smaller than the sum of its proper divisors (23790682877880).

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

11222020221000 is a wasteful number, since it uses less digits than its factorization.

11222020221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740673431 (or 3740673417 counting only the distinct ones).

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

Adding to 11222020221000 its reverse (12202022211), we get a palindrome (11234222243211).

The spelling of 11222020221000 in words is "eleven trillion, two hundred twenty-two billion, twenty million, two hundred twenty-one thousand".