121212222200202 has 64 divisors (see below), whose sum is σ = 277126012800000. Its totient is φ = 34623376636800.

The previous prime is 121212222200143. The next prime is 121212222200233. The reversal of 121212222200202 is 202002222212121.

It is a super-2 number, since 2×121212222200202² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3580740577 + ... + 3580774427.

It is an arithmetic number, because the mean of its divisors is an integer number (4330093950000).

Almost surely, 2^{121212222200202} is an apocalyptic number.

121212222200202 is an abundant number, since it is smaller than the sum of its proper divisors (155913790599798).

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

121212222200202 is a wasteful number, since it uses less digits than its factorization.

121212222200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52731.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121212222200202 its reverse (202002222212121), we get a palindrome (323214444412323).

The spelling of 121212222200202 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred twenty-two million, two hundred thousand, two hundred two".