210121022111093 has 2 divisors, whose sum is σ = 210121022111094. Its totient is φ = 210121022111092.

The previous prime is 210121022111089. The next prime is 210121022111107. The reversal of 210121022111093 is 390111220121012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195916512892324 + 14204509218769 = 13997018^2 + 3768887^2 .

It is a cyclic number.

It is not a de Polignac number, because 210121022111093 - 2² = 210121022111089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210121022111993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060511055546 + 105060511055547.

It is an arithmetic number, because the mean of its divisors is an integer number (105060511055547).

Almost surely, 2^{210121022111093} is an apocalyptic number.

It is an amenable number.

210121022111093 is a deficient number, since it is larger than the sum of its proper divisors (1).

210121022111093 is an equidigital number, since it uses as much as digits as its factorization.

210121022111093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 210121022111093 in words is "two hundred ten trillion, one hundred twenty-one billion, twenty-two million, one hundred eleven thousand, ninety-three".