2156226214 has 4 divisors (see below), whose sum is σ = 3234339324. Its totient is φ = 1078113106.

The previous prime is 2156226211. The next prime is 2156226217. The reversal of 2156226214 is 4126226512.

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

It is an interprime number because it is at equal distance from previous prime (2156226211) and next prime (2156226217).

It is a super-2 number, since 2×2156226214² = 9298622971881547592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156226211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539056552 + ... + 539056555.

It is an arithmetic number, because the mean of its divisors is an integer number (808584831).

Almost surely, 2^2156226214 is an apocalyptic number.

2156226214 is a deficient number, since it is larger than the sum of its proper divisors (1078113110).

2156226214 is a wasteful number, since it uses less digits than its factorization.

2156226214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078113109.

The product of its digits is 11520, while the sum is 31.

The square root of 2156226214 is about 46435.1829327720. The cubic root of 2156226214 is about 1291.9075626307.

The spelling of 2156226214 in words is "two billion, one hundred fifty-six million, two hundred twenty-six thousand, two hundred fourteen".