102122122121211 has 32 divisors (see below), whose sum is σ = 140791689658368. Its totient is φ = 65798160431360.

The previous prime is 102122122121207. The next prime is 102122122121291. The reversal of 102122122121211 is 112121221221201.

It is a cyclic number.

It is not a de Polignac number, because 102122122121211 - 2² = 102122122121207 is a prime.

It is a super-2 number, since 2×102122122121211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102122122121291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 529673350 + ... + 529866116.

It is an arithmetic number, because the mean of its divisors is an integer number (4399740301824).

Almost surely, 2^{102122122121211} is an apocalyptic number.

102122122121211 is a deficient number, since it is larger than the sum of its proper divisors (38669567537157).

102122122121211 is a wasteful number, since it uses less digits than its factorization.

102122122121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233171.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 102122122121211 its reverse (112121221221201), we get a palindrome (214243343342412).

The spelling of 102122122121211 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred eleven".