21122011220102 has 64 divisors (see below), whose sum is σ = 36068237150400. Its totient is φ = 9196406046720.

The previous prime is 21122011220081. The next prime is 21122011220113. The reversal of 21122011220102 is 20102211022112.

It is a super-2 number, since 2×21122011220102² (a number of 27 digits) contains 22 as substring.

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, 386051924 + ... + 386106632.

It is an arithmetic number, because the mean of its divisors is an integer number (563566205475).

Almost surely, 2^{21122011220102} is an apocalyptic number.

21122011220102 is a deficient number, since it is larger than the sum of its proper divisors (14946225930298).

21122011220102 is a wasteful number, since it uses less digits than its factorization.

21122011220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58041.

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

Adding to 21122011220102 its reverse (20102211022112), we get a palindrome (41224222242214).

The spelling of 21122011220102 in words is "twenty-one trillion, one hundred twenty-two billion, eleven million, two hundred twenty thousand, one hundred two".