210002120400019 has 16 divisors (see below), whose sum is σ = 216954627458688. Its totient is φ = 203166695227392.

The previous prime is 210002120399987. The next prime is 210002120400029. The reversal of 210002120400019 is 910004021200012.

It is not a de Polignac number, because 210002120400019 - 2⁵ = 210002120399987 is a prime.

It is a super-2 number, since 2×210002120400019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210002120400029) 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, 72304942 + ... + 75153235.

It is an arithmetic number, because the mean of its divisors is an integer number (13559664216168).

Almost surely, 2^{210002120400019} is an apocalyptic number.

210002120400019 is a deficient number, since it is larger than the sum of its proper divisors (6952507058669).

210002120400019 is a wasteful number, since it uses less digits than its factorization.

210002120400019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147458574.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 210002120400019 in words is "two hundred ten trillion, two billion, one hundred twenty million, four hundred thousand, nineteen".