20201121121002 has 16 divisors (see below), whose sum is σ = 40402384194432. Its totient is φ = 6733683381600.

The previous prime is 20201121120899. The next prime is 20201121121073. The reversal of 20201121121002 is 20012112110202.

It is a super-2 number, since 2×20201121121002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4017874 + ... + 7519677.

It is an arithmetic number, because the mean of its divisors is an integer number (2525149012152).

Almost surely, 2^{20201121121002} is an apocalyptic number.

20201121121002 is an abundant number, since it is smaller than the sum of its proper divisors (20201263073430).

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

20201121121002 is a wasteful number, since it uses less digits than its factorization.

20201121121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11829373.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201121121002 its reverse (20012112110202), we get a palindrome (40213233231204).

The spelling of 20201121121002 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, two".