101101122120021 has 16 divisors (see below), whose sum is σ = 135218976704448. Its totient is φ = 67192059513600.

The previous prime is 101101122119999. The next prime is 101101122120091. The reversal of 101101122120021 is 120021221101101.

It is a happy number.

It is not a de Polignac number, because 101101122120021 - 2⁶ = 101101122119957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101101122120091) 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, 1366966 + ... + 14285336.

It is an arithmetic number, because the mean of its divisors is an integer number (8451186044028).

Almost surely, 2^{101101122120021} is an apocalyptic number.

It is an amenable number.

101101122120021 is a deficient number, since it is larger than the sum of its proper divisors (34117854584427).

101101122120021 is a wasteful number, since it uses less digits than its factorization.

101101122120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12926452.

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

Adding to 101101122120021 its reverse (120021221101101), we get a palindrome (221122343221122).

The spelling of 101101122120021 in words is "one hundred one trillion, one hundred one billion, one hundred twenty-two million, one hundred twenty thousand, twenty-one".