20021322312002 has 16 divisors (see below), whose sum is σ = 32767558726752. Its totient is φ = 9099102455520.

The previous prime is 20021322311993. The next prime is 20021322312059.

It is a happy number.

20021322312002 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20021322312002² (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, 74793128 + ... + 75060339.

It is an arithmetic number, because the mean of its divisors is an integer number (2047972420422).

Almost surely, 2^{20021322312002} is an apocalyptic number.

20021322312002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021322312002 is a deficient number, since it is larger than the sum of its proper divisors (12746236414750).

20021322312002 is a wasteful number, since it uses less digits than its factorization.

20021322312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149859553.

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 2002132 and 2312002, that added together give a palindrome (4314134).

The spelling of 20021322312002 in words is "twenty trillion, twenty-one billion, three hundred twenty-two million, three hundred twelve thousand, two".