120202112221 has 16 divisors (see below), whose sum is σ = 132399331840. Its totient is φ = 108692616960.

The previous prime is 120202112207. The next prime is 120202112257. The reversal of 120202112221 is 122211202021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120202112221 - 2²³ = 120193723613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202112195 and 120202112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202412221) 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, 1354800 + ... + 1440793.

It is an arithmetic number, because the mean of its divisors is an integer number (8274958240).

Almost surely, 2^120202112221 is an apocalyptic number.

It is an amenable number.

120202112221 is a deficient number, since it is larger than the sum of its proper divisors (12197219619).

120202112221 is a wasteful number, since it uses less digits than its factorization.

120202112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795716.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120202112221 its reverse (122211202021), we get a palindrome (242413314242).

It can be divided in two parts, 1202021 and 12221, that multiplied together give a palindrome (14689898641).

The spelling of 120202112221 in words is "one hundred twenty billion, two hundred two million, one hundred twelve thousand, two hundred twenty-one".