222778336036 has 9 divisors (see below), whose sum is σ = 389863740049. Its totient is φ = 111388696024.

The previous prime is 222778336021. The next prime is 222778336063. The reversal of 222778336036 is 630633877222.

The square root of 222778336036 is 471994.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47196900 + 222731139136 = 6870^2 + 471944^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 825990 + ... + 1061986.

Almost surely, 2^222778336036 is an apocalyptic number.

222778336036 is the 471994-th square number.

It is an amenable number.

222778336036 is a deficient number, since it is larger than the sum of its proper divisors (167085404013).

222778336036 is an frugal number, since it uses more digits than its factorization.

222778336036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471998 (or 235999 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 49.

Multiplying 222778336036 by its sum of digits (49), we get a square (10916138465764 = 3303958²).

The spelling of 222778336036 in words is "two hundred twenty-two billion, seven hundred seventy-eight million, three hundred thirty-six thousand, thirty-six".