1212022341531 has 16 divisors (see below), whose sum is σ = 1799466833920. Its totient is φ = 806269713480.

The previous prime is 1212022341457. The next prime is 1212022341539. The reversal of 1212022341531 is 1351432202121.

It is a happy number.

1212022341531 is a `hidden beast` number, since 1 + 2 + 1 + 20 + 223 + 415 + 3 + 1 = 666.

It is not a de Polignac number, because 1212022341531 - 2⁷ = 1212022341403 is a prime.

It is a super-2 number, since 2×1212022341531² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212022341495 and 1212022341504.

It is not an unprimeable number, because it can be changed into a prime (1212022341539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48464515 + ... + 48489516.

It is an arithmetic number, because the mean of its divisors is an integer number (112466677120).

Almost surely, 2^{1212022341531} is an apocalyptic number.

1212022341531 is a deficient number, since it is larger than the sum of its proper divisors (587444492389).

1212022341531 is an equidigital number, since it uses as much as digits as its factorization.

1212022341531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96954503 (or 96954497 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1212022341531 its reverse (1351432202121), we get a palindrome (2563454543652).

The spelling of 1212022341531 in words is "one trillion, two hundred twelve billion, twenty-two million, three hundred forty-one thousand, five hundred thirty-one".