101002021222121 has 16 divisors (see below), whose sum is σ = 101362624691328. Its totient is φ = 100641976617600.

The previous prime is 101002021222093. The next prime is 101002021222147. The reversal of 101002021222121 is 121222120200101.

It is a cyclic number.

It is not a de Polignac number, because 101002021222121 - 2³⁰ = 101000947480297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101002021222121.

It is not an unprimeable number, because it can be changed into a prime (101002021222621) 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, 5831180141 + ... + 5831197461.

It is an arithmetic number, because the mean of its divisors is an integer number (6335164043208).

Almost surely, 2^{101002021222121} is an apocalyptic number.

It is an amenable number.

101002021222121 is a deficient number, since it is larger than the sum of its proper divisors (360603469207).

101002021222121 is a wasteful number, since it uses less digits than its factorization.

101002021222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32272.

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

Adding to 101002021222121 its reverse (121222120200101), we get a palindrome (222224141422222).

The spelling of 101002021222121 in words is "one hundred one trillion, two billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".