2121971114 has 4 divisors (see below), whose sum is σ = 3182956674. Its totient is φ = 1060985556.

The previous prime is 2121971077. The next prime is 2121971171. The reversal of 2121971114 is 4111791212.

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

It can be written as a sum of positive squares in only one way, i.e., 1247290489 + 874680625 = 35317^2 + 29575^2 .

It is a super-2 number, since 2×2121971114² = 9005522817300801992, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530492777 + ... + 530492780.

Almost surely, 2^2121971114 is an apocalyptic number.

2121971114 is a deficient number, since it is larger than the sum of its proper divisors (1060985560).

2121971114 is a wasteful number, since it uses less digits than its factorization.

2121971114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060985559.

The product of its digits is 1008, while the sum is 29.

The square root of 2121971114 is about 46064.8576900005. The cubic root of 2121971114 is about 1285.0296720326.

The spelling of 2121971114 in words is "two billion, one hundred twenty-one million, nine hundred seventy-one thousand, one hundred fourteen".