102211010021011 has 4 divisors (see below), whose sum is σ = 102211087079952. Its totient is φ = 102210932962072.

The previous prime is 102211010020997. The next prime is 102211010021033. The reversal of 102211010021011 is 110120010112201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102211010021011 - 2²¹ = 102211007923859 is a prime.

It is a super-2 number, since 2×102211010021011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211010020982 and 102211010021000.

It is not an unprimeable number, because it can be changed into a prime (102211010001011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36504391 + ... + 39204496.

It is an arithmetic number, because the mean of its divisors is an integer number (25552771769988).

Almost surely, 2^{102211010021011} is an apocalyptic number.

102211010021011 is a deficient number, since it is larger than the sum of its proper divisors (77058941).

102211010021011 is an equidigital number, since it uses as much as digits as its factorization.

102211010021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77058940.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102211010021011 its reverse (110120010112201), we get a palindrome (212331020133212).

The spelling of 102211010021011 in words is "one hundred two trillion, two hundred eleven billion, ten million, twenty-one thousand, eleven".