222001332979061 has 2 divisors, whose sum is σ = 222001332979062. Its totient is φ = 222001332979060.

The previous prime is 222001332979001. The next prime is 222001332979177. The reversal of 222001332979061 is 160979233100222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129392467756561 + 92608865222500 = 11375081^2 + 9623350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222001332979061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222001332978997 and 222001332979015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222001332979001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000666489530 + 111000666489531.

It is an arithmetic number, because the mean of its divisors is an integer number (111000666489531).

Almost surely, 2^{222001332979061} is an apocalyptic number.

It is an amenable number.

222001332979061 is a deficient number, since it is larger than the sum of its proper divisors (1).

222001332979061 is an equidigital number, since it uses as much as digits as its factorization.

222001332979061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 222001332979061 in words is "two hundred twenty-two trillion, one billion, three hundred thirty-two million, nine hundred seventy-nine thousand, sixty-one".