22012121011101 has 16 divisors (see below), whose sum is σ = 31620615292224. Its totient is φ = 13540148976384.

The previous prime is 22012121011079. The next prime is 22012121011147. The reversal of 22012121011101 is 10111012121022.

It is a happy number.

It is not a de Polignac number, because 22012121011101 - 2⁷ = 22012121010973 is a prime.

It is a super-2 number, since 2×22012121011101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012121011171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120149916 + ... + 120332981.

It is an arithmetic number, because the mean of its divisors is an integer number (1976288455764).

Almost surely, 2^{22012121011101} is an apocalyptic number.

It is an amenable number.

22012121011101 is a deficient number, since it is larger than the sum of its proper divisors (9608494281123).

22012121011101 is a wasteful number, since it uses less digits than its factorization.

22012121011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240485260.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22012121011101 its reverse (10111012121022), we get a palindrome (32123133132123).

The spelling of 22012121011101 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, eleven thousand, one hundred one".