120121202022210 has 128 divisors (see below), whose sum is σ = 339207760316160. Its totient is φ = 30144331865088.

The previous prime is 120121202022161. The next prime is 120121202022223. The reversal of 120121202022210 is 12220202121021.

It is a happy number.

120121202022210 is a `hidden beast` number, since 1 + 201 + 21 + 20 + 202 + 221 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35530029 + ... + 38763711.

It is an arithmetic number, because the mean of its divisors is an integer number (2650060627470).

Almost surely, 2^{120121202022210} is an apocalyptic number.

120121202022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120121202022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169603880158080).

120121202022210 is an abundant number, since it is smaller than the sum of its proper divisors (219086558293950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120121202022210 is a wasteful number, since it uses less digits than its factorization.

120121202022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241809 (or 3241803 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120121202022210 its reverse (12220202121021), we get a palindrome (132341404143231).

The spelling of 120121202022210 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred two million, twenty-two thousand, two hundred ten".