200121121022202 has 48 divisors (see below), whose sum is σ = 445330901681640. Its totient is φ = 64901766537216.

The previous prime is 200121121022197. The next prime is 200121121022233. The reversal of 200121121022202 is 202220121121002.

It is a happy number.

200121121022202 is a `hidden beast` number, since 20 + 0 + 1 + 211 + 210 + 2 + 220 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 189202253316561 + 10918867705641 = 13755081^2 + 3304371^2 .

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 23 ways as a sum of consecutive naturals, for example, 12703618 + ... + 23698610.

Almost surely, 2^{200121121022202} is an apocalyptic number.

200121121022202 is an abundant number, since it is smaller than the sum of its proper divisors (245209780659438).

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

200121121022202 is a wasteful number, since it uses less digits than its factorization.

200121121022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022367 (or 11022364 counting only the distinct ones).

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

Adding to 200121121022202 its reverse (202220121121002), we get a palindrome (402341242143204).

The spelling of 200121121022202 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, two hundred two".