122021101202021 has 32 divisors (see below), whose sum is σ = 155590238741760. Its totient is φ = 93158428962816.

The previous prime is 122021101201969. The next prime is 122021101202041. The reversal of 122021101202021 is 120202101120221.

It is not a de Polignac number, because 122021101202021 - 2²² = 122021097007717 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 (122021101202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26159936 + ... + 30469401.

It is an arithmetic number, because the mean of its divisors is an integer number (4862194960680).

Almost surely, 2^{122021101202021} is an apocalyptic number.

It is an amenable number.

122021101202021 is a deficient number, since it is larger than the sum of its proper divisors (33569137539739).

122021101202021 is a wasteful number, since it uses less digits than its factorization.

122021101202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56630333.

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

Adding to 122021101202021 its reverse (120202101120221), we get a palindrome (242223202322242).

The spelling of 122021101202021 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred one million, two hundred two thousand, twenty-one".