20221002121100 has 36 divisors (see below), whose sum is σ = 47868626842008. Its totient is φ = 7353091680000.

The previous prime is 20221002121063. The next prime is 20221002121183. The reversal of 20221002121100 is 112120012202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9191363501 + ... + 9191365700.

Almost surely, 2^{20221002121100} is an apocalyptic number.

20221002121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221002121100 is an abundant number, since it is smaller than the sum of its proper divisors (27647624720908).

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

20221002121100 is a wasteful number, since it uses less digits than its factorization.

20221002121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18382729226 (or 18382729219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221002121100 its reverse (112120012202), we get a palindrome (20333122133302).

The spelling of 20221002121100 in words is "twenty trillion, two hundred twenty-one billion, two million, one hundred twenty-one thousand, one hundred".