101122121111021 has 16 divisors (see below), whose sum is σ = 104102033457600. Its totient is φ = 98186782108800.

The previous prime is 101122121110993. The next prime is 101122121111051. The reversal of 101122121111021 is 120111121221101.

It is a cyclic number.

It is not a de Polignac number, because 101122121111021 - 2⁶ = 101122121110957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101122121111051) 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, 5291375 + ... + 15173756.

It is an arithmetic number, because the mean of its divisors is an integer number (6506377091100).

Almost surely, 2^{101122121111021} is an apocalyptic number.

It is an amenable number.

101122121111021 is a deficient number, since it is larger than the sum of its proper divisors (2979912346579).

101122121111021 is an equidigital number, since it uses as much as digits as its factorization.

101122121111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466220.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 101122121111021 its reverse (120111121221101), we get a palindrome (221233242332122).

The spelling of 101122121111021 in words is "one hundred one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred eleven thousand, twenty-one".