2161022005107 has 32 divisors (see below), whose sum is σ = 3667997736960. Its totient is φ = 1231790198400.

The previous prime is 2161022005099. The next prime is 2161022005123. The reversal of 2161022005107 is 7015002201612.

2161022005107 is a `hidden beast` number, since 21 + 6 + 102 + 20 + 0 + 510 + 7 = 666.

It is not a de Polignac number, because 2161022005107 - 2³ = 2161022005099 is a prime.

It is a super-2 number, since 2×2161022005107² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2161022005127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14181043 + ... + 14332620.

It is an arithmetic number, because the mean of its divisors is an integer number (114624929280).

Almost surely, 2^{2161022005107} is an apocalyptic number.

2161022005107 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2161022005107 is a deficient number, since it is larger than the sum of its proper divisors (1506975731853).

2161022005107 is a wasteful number, since it uses less digits than its factorization.

2161022005107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514080 (or 28514074 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 2161022005107 its reverse (7015002201612), we get a palindrome (9176024206719).

The spelling of 2161022005107 in words is "two trillion, one hundred sixty-one billion, twenty-two million, five thousand, one hundred seven".