221122201102000 has 160 divisors (see below), whose sum is σ = 583309923775488. Its totient is φ = 80403970400000.

The previous prime is 221122201101943. The next prime is 221122201102021. The reversal of 221122201102000 is 201102221122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448795785 + ... + 449288215.

Almost surely, 2^{221122201102000} is an apocalyptic number.

221122201102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221122201102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291654961887744).

221122201102000 is an abundant number, since it is smaller than the sum of its proper divisors (362187722673488).

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

221122201102000 is a wasteful number, since it uses less digits than its factorization.

221122201102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512876 (or 512860 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221122201102000 its reverse (201102221122), we get a palindrome (221323303323122).

It can be divided in two parts, 221 and 122201102000, that added together give a palindrome (122201102221).

The spelling of 221122201102000 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred one million, one hundred two thousand".