212081772230 has 32 divisors (see below), whose sum is σ = 394255110240. Its totient is φ = 82078790400.

The previous prime is 212081772197. The next prime is 212081772263. The reversal of 212081772230 is 32277180212.

It is an interprime number because it is at equal distance from previous prime (212081772197) and next prime (212081772263).

It is a super-2 number, since 2×212081772230² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534871 + ... + 1667330.

It is an arithmetic number, because the mean of its divisors is an integer number (12320472195).

Almost surely, 2^212081772230 is an apocalyptic number.

212081772230 is a deficient number, since it is larger than the sum of its proper divisors (182173338010).

212081772230 is a wasteful number, since it uses less digits than its factorization.

212081772230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202424.

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 212081772230 in words is "two hundred twelve billion, eighty-one million, seven hundred seventy-two thousand, two hundred thirty".