100121022221202 has 48 divisors (see below), whose sum is σ = 222796170991680. Its totient is φ = 32471049345696.

The previous prime is 100121022221179. The next prime is 100121022221221. The reversal of 100121022221202 is 202122220121001.

It is a happy number.

100121022221202 is a `hidden beast` number, since 10 + 0 + 1 + 210 + 22 + 221 + 202 = 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 23 ways as a sum of consecutive naturals, for example, 33313449 + ... + 36194307.

It is an arithmetic number, because the mean of its divisors is an integer number (4641586895660).

Almost surely, 2^{100121022221202} is an apocalyptic number.

100121022221202 is an abundant number, since it is smaller than the sum of its proper divisors (122675148770478).

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

100121022221202 is a wasteful number, since it uses less digits than its factorization.

100121022221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933087 (or 2933084 counting only the distinct ones).

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

Adding to 100121022221202 its reverse (202122220121001), we get a palindrome (302243242342203).

The spelling of 100121022221202 in words is "one hundred trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, two hundred two".