121322211022031 has 4 divisors (see below), whose sum is σ = 122195032684200. Its totient is φ = 120449389359864.

The previous prime is 121322211022013. The next prime is 121322211022073. The reversal of 121322211022031 is 130220112223121.

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

It is a cyclic number.

It is not a de Polignac number, because 121322211022031 - 2³⁴ = 121305031152847 is a prime.

It is a super-2 number, since 2×121322211022031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121322211021988 and 121322211022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322211022081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436410830876 + ... + 436410831153.

It is an arithmetic number, because the mean of its divisors is an integer number (30548758171050).

Almost surely, 2^{121322211022031} is an apocalyptic number.

121322211022031 is a deficient number, since it is larger than the sum of its proper divisors (872821662169).

121322211022031 is an equidigital number, since it uses as much as digits as its factorization.

121322211022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872821662168.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121322211022031 its reverse (130220112223121), we get a palindrome (251542323245152).

The spelling of 121322211022031 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, two hundred eleven million, twenty-two thousand, thirty-one".