122101200221021 has 32 divisors (see below), whose sum is σ = 152591853265920. Its totient is φ = 95322811262976.

The previous prime is 122101200221017. The next prime is 122101200221029. The reversal of 122101200221021 is 120122002101221.

It is a cyclic number.

It is not a de Polignac number, because 122101200221021 - 2² = 122101200221017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101200221029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122148710 + ... + 123144263.

It is an arithmetic number, because the mean of its divisors is an integer number (4768495414560).

Almost surely, 2^{122101200221021} is an apocalyptic number.

It is an amenable number.

122101200221021 is a deficient number, since it is larger than the sum of its proper divisors (30490653044899).

122101200221021 is a wasteful number, since it uses less digits than its factorization.

122101200221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245293133.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122101200221021 its reverse (120122002101221), we get a palindrome (242223202322242).

The spelling of 122101200221021 in words is "one hundred twenty-two trillion, one hundred one billion, two hundred million, two hundred twenty-one thousand, twenty-one".