10021012122111 has 8 divisors (see below), whose sum is σ = 13361389554864. Its totient is φ = 6680654718720.

The previous prime is 10021012122097. The next prime is 10021012122119. The reversal of 10021012122111 is 11122121012001.

It is a happy number.

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

It is not a de Polignac number, because 10021012122111 - 2²² = 10021007927807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021012122119) 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, 3798226 + ... + 5870991.

It is an arithmetic number, because the mean of its divisors is an integer number (1670173694358).

Almost surely, 2^{10021012122111} is an apocalyptic number.

10021012122111 is a deficient number, since it is larger than the sum of its proper divisors (3340377432753).

10021012122111 is an equidigital number, since it uses as much as digits as its factorization.

10021012122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10014681.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10021012122111 its reverse (11122121012001), we get a palindrome (21143133134112).

The spelling of 10021012122111 in words is "ten trillion, twenty-one billion, twelve million, one hundred twenty-two thousand, one hundred eleven".