102011211222021 has 16 divisors (see below), whose sum is σ = 151376695180800. Its totient is φ = 67895435464704.

The previous prime is 102011211221923. The next prime is 102011211222029. The reversal of 102011211222021 is 120222112110201.

102011211222021 is a `hidden beast` number, since 10 + 201 + 1 + 211 + 2 + 220 + 21 = 666.

It is not a de Polignac number, because 102011211222021 - 2¹⁷ = 102011211090949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102011211221985 and 102011211222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011211222029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3112168956 + ... + 3112201733.

It is an arithmetic number, because the mean of its divisors is an integer number (9461043448800).

Almost surely, 2^{102011211222021} is an apocalyptic number.

It is an amenable number.

102011211222021 is a deficient number, since it is larger than the sum of its proper divisors (49365483958779).

102011211222021 is an equidigital number, since it uses as much as digits as its factorization.

102011211222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224371305 (or 6224371299 counting only the distinct ones).

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

Adding to 102011211222021 its reverse (120222112110201), we get a palindrome (222233323332222).

The spelling of 102011211222021 in words is "one hundred two trillion, eleven billion, two hundred eleven million, two hundred twenty-two thousand, twenty-one".