91000202111122 has 32 divisors (see below), whose sum is σ = 144908338754880. Its totient is φ = 42738977111040.

The previous prime is 91000202111113. The next prime is 91000202111131. The reversal of 91000202111122 is 22111120200019.

It is an interprime number because it is at equal distance from previous prime (91000202111113) and next prime (91000202111131).

It is a junction number, because it is equal to n+sod(n) for n = 91000202111093 and 91000202111102.

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, 6262879 + ... + 14873602.

It is an arithmetic number, because the mean of its divisors is an integer number (4528385586090).

Almost surely, 2^{91000202111122} is an apocalyptic number.

91000202111122 is a deficient number, since it is larger than the sum of its proper divisors (53908136643758).

91000202111122 is a wasteful number, since it uses less digits than its factorization.

91000202111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21137466.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 91000202111122 in words is "ninety-one trillion, two hundred two million, one hundred eleven thousand, one hundred twenty-two".