2122372078 has 4 divisors (see below), whose sum is σ = 3183558120. Its totient is φ = 1061186038.

The previous prime is 2122372073. The next prime is 2122372097. The reversal of 2122372078 is 8702732212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122372073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530593018 + ... + 530593021.

It is an arithmetic number, because the mean of its divisors is an integer number (795889530).

Almost surely, 2^2122372078 is an apocalyptic number.

2122372078 is a deficient number, since it is larger than the sum of its proper divisors (1061186042).

2122372078 is a wasteful number, since it uses less digits than its factorization.

2122372078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061186041.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 2122372078 is about 46069.2096524349. The cubic root of 2122372078 is about 1285.1106059315.

The spelling of 2122372078 in words is "two billion, one hundred twenty-two million, three hundred seventy-two thousand, seventy-eight".