121222220031023 has 4 divisors (see below), whose sum is σ = 121401277963800. Its totient is φ = 121043162098248.

The previous prime is 121222220030897. The next prime is 121222220031131. The reversal of 121222220031023 is 320130022222121.

It is a happy number.

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 121222220031023 - 2¹⁴ = 121222220014639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121222220031023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222220031823) 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, 89528965373 + ... + 89528966726.

It is an arithmetic number, because the mean of its divisors is an integer number (30350319490950).

Almost surely, 2^{121222220031023} is an apocalyptic number.

121222220031023 is a deficient number, since it is larger than the sum of its proper divisors (179057932777).

121222220031023 is an equidigital number, since it uses as much as digits as its factorization.

121222220031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179057932776.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121222220031023 its reverse (320130022222121), we get a palindrome (441352242253144).

The spelling of 121222220031023 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred twenty million, thirty-one thousand, twenty-three".