121312223121122 has 32 divisors (see below), whose sum is σ = 198634847733504. Its totient is φ = 55107495414400.

The previous prime is 121312223121113. The next prime is 121312223121137. The reversal of 121312223121122 is 221121322213121.

It is a junction number, because it is equal to n+sod(n) for n = 121312223121091 and 121312223121100.

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, 1110324248 + ... + 1110433500.

It is an arithmetic number, because the mean of its divisors is an integer number (6207338991672).

Almost surely, 2^{121312223121122} is an apocalyptic number.

121312223121122 is a deficient number, since it is larger than the sum of its proper divisors (77322624612382).

121312223121122 is a wasteful number, since it uses less digits than its factorization.

121312223121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140314.

The product of its digits is 1152, while the sum is 26.

Adding to 121312223121122 its reverse (221121322213121), we get a palindrome (342433545334243).

The spelling of 121312223121122 in words is "one hundred twenty-one trillion, three hundred twelve billion, two hundred twenty-three million, one hundred twenty-one thousand, one hundred twenty-two".