12220002121210 has 32 divisors (see below), whose sum is σ = 24504831847440. Its totient is φ = 4356414547968.

The previous prime is 12220002121199. The next prime is 12220002121241. The reversal of 12220002121210 is 1212120002221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3747519094201 + 8472483027009 = 1935851^2 + 2910753^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620686167 + ... + 1620693706.

Almost surely, 2^{12220002121210} is an apocalyptic number.

12220002121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220002121210 is an abundant number, since it is smaller than the sum of its proper divisors (12284829726230).

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

12220002121210 is a wasteful number, since it uses less digits than its factorization.

12220002121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241379922.

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

Adding to 12220002121210 its reverse (1212120002221), we get a palindrome (13432122123431).

The spelling of 12220002121210 in words is "twelve trillion, two hundred twenty billion, two million, one hundred twenty-one thousand, two hundred ten".