20202121011000 has 64 divisors (see below), whose sum is σ = 63030617563680. Its totient is φ = 5387232268800.

The previous prime is 20202121010993. The next prime is 20202121011001. The reversal of 20202121011000 is 11012120202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202121011001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3367017169 + ... + 3367023168.

Almost surely, 2^{20202121011000} is an apocalyptic number.

20202121011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202121011000 is an abundant number, since it is smaller than the sum of its proper divisors (42828496552680).

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

20202121011000 is a wasteful number, since it uses less digits than its factorization.

20202121011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734040361 (or 6734040347 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20202121011000 its reverse (11012120202), we get a palindrome (20213133131202).

The spelling of 20202121011000 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, eleven thousand".