2121211313013 has 64 divisors (see below), whose sum is σ = 3154190054400. Its totient is φ = 1259692646400.

The previous prime is 2121211312999. The next prime is 2121211313047. The reversal of 2121211313013 is 3103131121212.

It is not a de Polignac number, because 2121211313013 - 2²¹ = 2121209215861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121211317013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57400020 + ... + 57436962.

It is an arithmetic number, because the mean of its divisors is an integer number (49284219600).

Almost surely, 2^{2121211313013} is an apocalyptic number.

It is an amenable number.

2121211313013 is a deficient number, since it is larger than the sum of its proper divisors (1032978741387).

2121211313013 is a wasteful number, since it uses less digits than its factorization.

2121211313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37390.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2121211313013 its reverse (3103131121212), we get a palindrome (5224342434225).

The spelling of 2121211313013 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, three hundred thirteen thousand, thirteen".