2122157090 has 32 divisors (see below), whose sum is σ = 4047926400. Its totient is φ = 798269184.

The previous prime is 2122157083. The next prime is 2122157117. The reversal of 2122157090 is 907512212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233369 + ... + 242291.

It is an arithmetic number, because the mean of its divisors is an integer number (126497700).

Almost surely, 2^2122157090 is an apocalyptic number.

2122157090 is a deficient number, since it is larger than the sum of its proper divisors (1925769310).

2122157090 is a wasteful number, since it uses less digits than its factorization.

2122157090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10346.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 2122157090 is about 46066.8762778637. The cubic root of 2122157090 is about 1285.0672122383.

The spelling of 2122157090 in words is "two billion, one hundred twenty-two million, one hundred fifty-seven thousand, ninety".