20211121012002 has 32 divisors (see below), whose sum is σ = 42554662675200. Its totient is φ = 6381719132688.

The previous prime is 20211121011911. The next prime is 20211121012013. The reversal of 20211121012002 is 20021012111202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9291852 + ... + 11258807.

It is an arithmetic number, because the mean of its divisors is an integer number (1329833208600).

Almost surely, 2^{20211121012002} is an apocalyptic number.

20211121012002 is an abundant number, since it is smaller than the sum of its proper divisors (22343541663198).

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

20211121012002 is a wasteful number, since it uses less digits than its factorization.

20211121012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20559310.

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

Adding to 20211121012002 its reverse (20021012111202), we get a palindrome (40232133123204).

The spelling of 20211121012002 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-one million, twelve thousand, two".