102220212121011 has 24 divisors (see below), whose sum is σ = 153561515340480. Its totient is φ = 65465698611456.

The previous prime is 102220212120977. The next prime is 102220212121033. The reversal of 102220212121011 is 110121212022201.

102220212121011 is a `hidden beast` number, since 10 + 2 + 220 + 212 + 1 + 210 + 11 = 666.

It is not a de Polignac number, because 102220212121011 - 2¹³ = 102220212112819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102220212121091) 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, 1942806630 + ... + 1942859243.

It is an arithmetic number, because the mean of its divisors is an integer number (6398396472520).

Almost surely, 2^{102220212121011} is an apocalyptic number.

102220212121011 is a deficient number, since it is larger than the sum of its proper divisors (51341303219469).

102220212121011 is a wasteful number, since it uses less digits than its factorization.

102220212121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885665995 (or 3885665992 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102220212121011 its reverse (110121212022201), we get a palindrome (212341424143212).

The spelling of 102220212121011 in words is "one hundred two trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, eleven".