20210122021002 has 64 divisors (see below), whose sum is σ = 40820827751424. Its totient is φ = 6670073329920.

The previous prime is 20210122020983. The next prime is 20210122021021. The reversal of 20210122021002 is 20012022101202.

It is an interprime number because it is at equal distance from previous prime (20210122020983) and next prime (20210122021021).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3779709693 + ... + 3779715039.

It is an arithmetic number, because the mean of its divisors is an integer number (637825433616).

Almost surely, 2^{20210122021002} is an apocalyptic number.

20210122021002 is an abundant number, since it is smaller than the sum of its proper divisors (20610705730422).

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

20210122021002 is a wasteful number, since it uses less digits than its factorization.

20210122021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283.

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

Adding to 20210122021002 its reverse (20012022101202), we get a palindrome (40222144122204).

The spelling of 20210122021002 in words is "twenty trillion, two hundred ten billion, one hundred twenty-two million, twenty-one thousand, two".