212021121202 has 16 divisors (see below), whose sum is σ = 347194929024. Its totient is φ = 96303438000.

The previous prime is 212021121199. The next prime is 212021121227. The reversal of 212021121202 is 202121120212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3458874 + ... + 3519637.

It is an arithmetic number, because the mean of its divisors is an integer number (21699683064).

Almost surely, 2^212021121202 is an apocalyptic number.

212021121202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212021121202 is a deficient number, since it is larger than the sum of its proper divisors (135173807822).

212021121202 is a wasteful number, since it uses less digits than its factorization.

212021121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979905.

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

Adding to 212021121202 its reverse (202121120212), we get a palindrome (414142241414).

The spelling of 212021121202 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred two".