22101200121012 has 12 divisors (see below), whose sum is σ = 51569466949056. Its totient is φ = 7367066707000.

The previous prime is 22101200120977. The next prime is 22101200121031. The reversal of 22101200121012 is 21012100210122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22101200120982 and 22101200121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920883338364 + ... + 920883338387.

It is an arithmetic number, because the mean of its divisors is an integer number (4297455579088).

Almost surely, 2^{22101200121012} is an apocalyptic number.

It is an amenable number.

22101200121012 is an abundant number, since it is smaller than the sum of its proper divisors (29468266828044).

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

22101200121012 is a wasteful number, since it uses less digits than its factorization.

22101200121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841766676758 (or 1841766676756 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22101200121012 its reverse (21012100210122), we get a palindrome (43113300331134).

The spelling of 22101200121012 in words is "twenty-two trillion, one hundred one billion, two hundred million, one hundred twenty-one thousand, twelve".