122101001100021 has 8 divisors (see below), whose sum is σ = 172377883905984. Its totient is φ = 76612392847040.

The previous prime is 122101001100017. The next prime is 122101001100037. The reversal of 122101001100021 is 120001100101221.

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 122101001100021 - 2² = 122101001100017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101001101021) 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, 1197068638185 + ... + 1197068638286.

It is an arithmetic number, because the mean of its divisors is an integer number (21547235488248).

Almost surely, 2^{122101001100021} is an apocalyptic number.

It is an amenable number.

122101001100021 is a deficient number, since it is larger than the sum of its proper divisors (50276882805963).

122101001100021 is a wasteful number, since it uses less digits than its factorization.

122101001100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394137276491.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122101001100021 its reverse (120001100101221), we get a palindrome (242102101201242).

The spelling of 122101001100021 in words is "one hundred twenty-two trillion, one hundred one billion, one million, one hundred thousand, twenty-one".