22012102211021 has 12 divisors (see below), whose sum is σ = 23836978664928. Its totient is φ = 20317679772624.

The previous prime is 22012102210999. The next prime is 22012102211069. The reversal of 22012102211021 is 12011220121022.

It is a de Polignac number, because none of the positive numbers 2^k-22012102211021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012102211621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 878345 + ... + 6692958.

It is an arithmetic number, because the mean of its divisors is an integer number (1986414888744).

Almost surely, 2^{22012102211021} is an apocalyptic number.

It is an amenable number.

22012102211021 is a deficient number, since it is larger than the sum of its proper divisors (1824876453907).

22012102211021 is a wasteful number, since it uses less digits than its factorization.

22012102211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588532 (or 7588519 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22012102211021 its reverse (12011220121022), we get a palindrome (34023322332043).

The spelling of 22012102211021 in words is "twenty-two trillion, twelve billion, one hundred two million, two hundred eleven thousand, twenty-one".