102211122021211 has 12 divisors (see below), whose sum is σ = 119806275453480. Its totient is φ = 86940758093280.

The previous prime is 102211122021133. The next prime is 102211122021227. The reversal of 102211122021211 is 112120221112201.

It is a happy number.

It is not a de Polignac number, because 102211122021211 - 2¹¹ = 102211122019163 is a prime.

It is a super-2 number, since 2×102211122021211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102211122021251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7961601466 + ... + 7961614303.

It is an arithmetic number, because the mean of its divisors is an integer number (9983856287790).

Almost surely, 2^{102211122021211} is an apocalyptic number.

102211122021211 is a deficient number, since it is larger than the sum of its proper divisors (17595153432269).

102211122021211 is a wasteful number, since it uses less digits than its factorization.

102211122021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923215914 (or 15923215907 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102211122021211 its reverse (112120221112201), we get a palindrome (214331343133412).

The spelling of 102211122021211 in words is "one hundred two trillion, two hundred eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred eleven".