7690211022121 has 4 divisors (see below), whose sum is σ = 7693008482500. Its totient is φ = 7687413561744.

The previous prime is 7690211022101. The next prime is 7690211022133. The reversal of 7690211022121 is 1212201120967.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2551012701721 + 5139198320400 = 1597189^2 + 2266980^2 .

It is a cyclic number.

It is not a de Polignac number, because 7690211022121 - 2¹⁵ = 7690210989353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7690211022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398726066 + ... + 1398731563.

It is an arithmetic number, because the mean of its divisors is an integer number (1923252120625).

Almost surely, 2^{7690211022121} is an apocalyptic number.

It is an amenable number.

7690211022121 is a deficient number, since it is larger than the sum of its proper divisors (2797460379).

7690211022121 is a wasteful number, since it uses less digits than its factorization.

7690211022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797460378.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 7690211022121 in words is "seven trillion, six hundred ninety billion, two hundred eleven million, twenty-two thousand, one hundred twenty-one".