101002120220121 has 32 divisors (see below), whose sum is σ = 137888391674880. Its totient is φ = 65727289387200.

The previous prime is 101002120220059. The next prime is 101002120220159. The reversal of 101002120220121 is 121022021200101.

It is not a de Polignac number, because 101002120220121 - 2²³ = 101002111831513 is a prime.

It is a super-2 number, since 2×101002120220121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101002120220121.

It is not an unprimeable number, because it can be changed into a prime (101002120220821) 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, 1405484731 + ... + 1405556591.

It is an arithmetic number, because the mean of its divisors is an integer number (4309012239840).

Almost surely, 2^{101002120220121} is an apocalyptic number.

It is an amenable number.

101002120220121 is a deficient number, since it is larger than the sum of its proper divisors (36886271454759).

101002120220121 is a wasteful number, since it uses less digits than its factorization.

101002120220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78637.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101002120220121 its reverse (121022021200101), we get a palindrome (222024141420222).

The spelling of 101002120220121 in words is "one hundred one trillion, two billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-one".