20213312213100 has 36 divisors (see below), whose sum is σ = 58483850004104. Its totient is φ = 5390216590080.

The previous prime is 20213312213099. The next prime is 20213312213113. The reversal of 20213312213100 is 131221331202.

It is a super-2 number, since 2×20213312213100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33688853389 + ... + 33688853988.

Almost surely, 2^{20213312213100} is an apocalyptic number.

20213312213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213312213100 is an abundant number, since it is smaller than the sum of its proper divisors (38270537791004).

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

20213312213100 is a wasteful number, since it uses less digits than its factorization.

20213312213100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67377707394 (or 67377707387 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20213312213100 its reverse (131221331202), we get a palindrome (20344533544302).

The spelling of 20213312213100 in words is "twenty trillion, two hundred thirteen billion, three hundred twelve million, two hundred thirteen thousand, one hundred".