20021200414401 has 16 divisors (see below), whose sum is σ = 27096725577600. Its totient is φ = 13146929523840.

The previous prime is 20021200414399. The next prime is 20021200414433. The reversal of 20021200414401 is 10441400212002.

It is not a de Polignac number, because 20021200414401 - 2¹ = 20021200414399 is a prime.

It is a super-2 number, since 2×20021200414401² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20021200414441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44579350 + ... + 45026223.

It is an arithmetic number, because the mean of its divisors is an integer number (1693545348600).

Almost surely, 2^{20021200414401} is an apocalyptic number.

It is an amenable number.

20021200414401 is a deficient number, since it is larger than the sum of its proper divisors (7075525163199).

20021200414401 is a wasteful number, since it uses less digits than its factorization.

20021200414401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89606696.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20021200414401 its reverse (10441400212002), we get a palindrome (30462600626403).

The spelling of 20021200414401 in words is "twenty trillion, twenty-one billion, two hundred million, four hundred fourteen thousand, four hundred one".