22121102011113 has 24 divisors (see below), whose sum is σ = 36558824754816. Its totient is φ = 12626281641600.

The previous prime is 22121102011111. The next prime is 22121102011171. The reversal of 22121102011113 is 31111020112122.

It is a happy number.

It is not a de Polignac number, because 22121102011113 - 2¹ = 22121102011111 is a prime.

It is a super-2 number, since 2×22121102011113² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22121102011111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199222933 + ... + 199333938.

It is an arithmetic number, because the mean of its divisors is an integer number (1523284364784).

Almost surely, 2^{22121102011113} is an apocalyptic number.

It is an amenable number.

22121102011113 is a deficient number, since it is larger than the sum of its proper divisors (14437722743703).

22121102011113 is a wasteful number, since it uses less digits than its factorization.

22121102011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398557765 (or 398557762 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 22121102011113 its reverse (31111020112122), we get a palindrome (53232122123235).

The spelling of 22121102011113 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, eleven thousand, one hundred thirteen".