222100021101949 has 2 divisors, whose sum is σ = 222100021101950. Its totient is φ = 222100021101948.

The previous prime is 222100021101911. The next prime is 222100021102049. The reversal of 222100021101949 is 949101120001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171166720624900 + 50933300477049 = 13083070^2 + 7136757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222100021101949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222100021701949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050010550974 + 111050010550975.

It is an arithmetic number, because the mean of its divisors is an integer number (111050010550975).

Almost surely, 2^{222100021101949} is an apocalyptic number.

It is an amenable number.

222100021101949 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100021101949 is an equidigital number, since it uses as much as digits as its factorization.

222100021101949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 222100021101949 in words is "two hundred twenty-two trillion, one hundred billion, twenty-one million, one hundred one thousand, nine hundred forty-nine".