101201220202121 has 32 divisors (see below), whose sum is σ = 116983983083520. Its totient is φ = 86833468108800.

The previous prime is 101201220202099. The next prime is 101201220202193. The reversal of 101201220202121 is 121202022102101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101201220202121 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 101201220202121.

It is not an unprimeable number, because it can be changed into a prime (101201220702121) 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, 20177825 + ... + 24689006.

It is an arithmetic number, because the mean of its divisors is an integer number (3655749471360).

Almost surely, 2^{101201220202121} is an apocalyptic number.

It is an amenable number.

101201220202121 is a deficient number, since it is larger than the sum of its proper divisors (15782762881399).

101201220202121 is a wasteful number, since it uses less digits than its factorization.

101201220202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44867097.

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

Adding to 101201220202121 its reverse (121202022102101), we get a palindrome (222403242304222).

The spelling of 101201220202121 in words is "one hundred one trillion, two hundred one billion, two hundred twenty million, two hundred two thousand, one hundred twenty-one".