101202210212121 has 12 divisors (see below), whose sum is σ = 146242159525540. Its totient is φ = 67439898963360.

The previous prime is 101202210212119. The next prime is 101202210212143. The reversal of 101202210212121 is 121212012202101.

101202210212121 is a `hidden beast` number, since 1 + 0 + 120 + 2 + 210 + 212 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 44766657442521 + 56435552769600 = 6690789^2 + 7512360^2 .

It is not a de Polignac number, because 101202210212121 - 2¹ = 101202210212119 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101202210212094 and 101202210212103.

It is not an unprimeable number, because it can be changed into a prime (101202210212111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2353408810 + ... + 2353451811.

Almost surely, 2^{101202210212121} is an apocalyptic number.

It is an amenable number.

101202210212121 is a deficient number, since it is larger than the sum of its proper divisors (45039949313419).

101202210212121 is a wasteful number, since it uses less digits than its factorization.

101202210212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706863016 (or 4706863013 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 101202210212121 its reverse (121212012202101), we get a palindrome (222414222414222).

The spelling of 101202210212121 in words is "one hundred one trillion, two hundred two billion, two hundred ten million, two hundred twelve thousand, one hundred twenty-one".