22001012101012 has 96 divisors (see below), whose sum is σ = 45555993018368. Its totient is φ = 9100153609344.

The previous prime is 22001012100979. The next prime is 22001012101093. The reversal of 22001012101012 is 21010121010022.

It is a junction number, because it is equal to n+sod(n) for n = 22001012100983 and 22001012101001.

It is a congruent number.

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, 837705793 + ... + 837732055.

Almost surely, 2^{22001012101012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22001012101012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22777996509184).

22001012101012 is an abundant number, since it is smaller than the sum of its proper divisors (23554980917356).

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

22001012101012 is a wasteful number, since it uses less digits than its factorization.

22001012101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32805 (or 32803 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22001012101012 its reverse (21010121010022), we get a palindrome (43011133111034).

The spelling of 22001012101012 in words is "twenty-two trillion, one billion, twelve million, one hundred one thousand, twelve".