20210122201002 has 256 divisors, whose sum is σ = 46660608576000. Its totient is φ = 5795006644224.

The previous prime is 20210122201001. The next prime is 20210122201013. The reversal of 20210122201002 is 20010222101202.

It is not an unprimeable number, because it can be changed into a prime (20210122201001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4220110824 + ... + 4220115612.

It is an arithmetic number, because the mean of its divisors is an integer number (182268002250).

Almost surely, 2^{20210122201002} is an apocalyptic number.

20210122201002 is an abundant number, since it is smaller than the sum of its proper divisors (26450486374998).

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

20210122201002 is a wasteful number, since it uses less digits than its factorization.

20210122201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20210122201002 its reverse (20010222101202), we get a palindrome (40220344302204).

The spelling of 20210122201002 in words is "twenty trillion, two hundred ten billion, one hundred twenty-two million, two hundred one thousand, two".