312121223302022 has 16 divisors (see below), whose sum is σ = 492534952030800. Its totient is φ = 148125326311200.

The previous prime is 312121223301991. The next prime is 312121223302037. The reversal of 312121223302022 is 220203322121213.

It is a super-2 number, since 2×312121223302022² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312121223301982 and 312121223302000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45605084729 + ... + 45605091572.

It is an arithmetic number, because the mean of its divisors is an integer number (30783434501925).

Almost surely, 2^{312121223302022} is an apocalyptic number.

312121223302022 is a deficient number, since it is larger than the sum of its proper divisors (180413728728778).

312121223302022 is a wasteful number, since it uses less digits than its factorization.

312121223302022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91210176391.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312121223302022 its reverse (220203322121213), we get a palindrome (532324545423235).

The spelling of 312121223302022 in words is "three hundred twelve trillion, one hundred twenty-one billion, two hundred twenty-three million, three hundred two thousand, twenty-two".