97990122211 has 4 divisors (see below), whose sum is σ = 99650971800. Its totient is φ = 96329272624.

The previous prime is 97990122187. The next prime is 97990122287. The reversal of 97990122211 is 11222109979.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97990122211 - 2¹⁷ = 97989991139 is a prime.

It is a super-3 number, since 3×97990122211³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97990122611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830424706 + ... + 830424823.

It is an arithmetic number, because the mean of its divisors is an integer number (24912742950).

Almost surely, 2^97990122211 is an apocalyptic number.

97990122211 is a deficient number, since it is larger than the sum of its proper divisors (1660849589).

97990122211 is a wasteful number, since it uses less digits than its factorization.

97990122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660849588.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 97990122211 in words is "ninety-seven billion, nine hundred ninety million, one hundred twenty-two thousand, two hundred eleven".