102010112210021 has 8 divisors (see below), whose sum is σ = 102832469136600. Its totient is φ = 101190784223232.

The previous prime is 102010112209987. The next prime is 102010112210087. The reversal of 102010112210021 is 120012211010201.

It can be written as a sum of positive squares in 4 ways, for example, as 16458526861921 + 85551585348100 = 4056911^2 + 9249410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102010112210021 - 2¹⁴ = 102010112193637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102010112209978 and 102010112210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010112210221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757167320 + ... + 757302033.

It is an arithmetic number, because the mean of its divisors is an integer number (12854058642075).

Almost surely, 2^{102010112210021} is an apocalyptic number.

It is an amenable number.

102010112210021 is a deficient number, since it is larger than the sum of its proper divisors (822356926579).

102010112210021 is a wasteful number, since it uses less digits than its factorization.

102010112210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514469895.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102010112210021 its reverse (120012211010201), we get a palindrome (222022323220222).

The spelling of 102010112210021 in words is "one hundred two trillion, ten billion, one hundred twelve million, two hundred ten thousand, twenty-one".