1212020213313 has 32 divisors (see below), whose sum is σ = 1989239212800. Its totient is φ = 639216412416.

The previous prime is 1212020213293. The next prime is 1212020213357. The reversal of 1212020213313 is 3133120202121.

It is not a de Polignac number, because 1212020213313 - 2¹⁶ = 1212020147777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1212020213313.

It is not an unprimeable number, because it can be changed into a prime (1212020213363) 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, 1628503 + ... + 2253011.

It is an arithmetic number, because the mean of its divisors is an integer number (62163725400).

Almost surely, 2^{1212020213313} is an apocalyptic number.

1212020213313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1212020213313 is a deficient number, since it is larger than the sum of its proper divisors (777218999487).

1212020213313 is a wasteful number, since it uses less digits than its factorization.

1212020213313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631641.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1212020213313 its reverse (3133120202121), we get a palindrome (4345140415434).

The spelling of 1212020213313 in words is "one trillion, two hundred twelve billion, twenty million, two hundred thirteen thousand, three hundred thirteen".