1212022313121 has 32 divisors (see below), whose sum is σ = 1722153717760. Its totient is φ = 756038831616.

The previous prime is 1212022313119. The next prime is 1212022313123. The reversal of 1212022313121 is 1213132202121.

It is an interprime number because it is at equal distance from previous prime (1212022313119) and next prime (1212022313123).

It is not a de Polignac number, because 1212022313121 - 2¹ = 1212022313119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212022313123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2467560 + ... + 2917686.

It is an arithmetic number, because the mean of its divisors is an integer number (53817303680).

Almost surely, 2^{1212022313121} is an apocalyptic number.

It is an amenable number.

1212022313121 is a deficient number, since it is larger than the sum of its proper divisors (510131404639).

1212022313121 is a wasteful number, since it uses less digits than its factorization.

1212022313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450733.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1212022313121 its reverse (1213132202121), we get a palindrome (2425154515242).

The spelling of 1212022313121 in words is "one trillion, two hundred twelve billion, twenty-two million, three hundred thirteen thousand, one hundred twenty-one".