2122151406 has 16 divisors (see below), whose sum is σ = 4244755584. Its totient is φ = 707308344.

The previous prime is 2122151377. The next prime is 2122151441. The reversal of 2122151406 is 6041512212.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94125 + ... + 114471.

It is an arithmetic number, because the mean of its divisors is an integer number (265297224).

Almost surely, 2^2122151406 is an apocalyptic number.

2122151406 is an abundant number, since it is smaller than the sum of its proper divisors (2122604178).

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

2122151406 is a wasteful number, since it uses less digits than its factorization.

2122151406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37735.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2122151406 is about 46066.8145849048. The cubic root of 2122151406 is about 1285.0660649264.

Adding to 2122151406 its reverse (6041512212), we get a palindrome (8163663618).

It can be divided in two parts, 21221 and 51406, that added together give a palindrome (72627).

The spelling of 2122151406 in words is "two billion, one hundred twenty-two million, one hundred fifty-one thousand, four hundred six".