121210001310 has 32 divisors (see below), whose sum is σ = 290951648640. Its totient is φ = 32317373088.

The previous prime is 121210001281. The next prime is 121210001317. The reversal of 121210001310 is 13100012121.

It is a super-2 number, since 2×121210001310² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210001317) 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, 142900 + ... + 512679.

It is an arithmetic number, because the mean of its divisors is an integer number (9092239020).

Almost surely, 2^121210001310 is an apocalyptic number.

121210001310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210001310 is an abundant number, since it is smaller than the sum of its proper divisors (169741647330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121210001310 is a wasteful number, since it uses less digits than its factorization.

121210001310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661752.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 121210001310 its reverse (13100012121), we get a palindrome (134310013431).

The spelling of 121210001310 in words is "one hundred twenty-one billion, two hundred ten million, one thousand, three hundred ten".