2010112131221 has 2 divisors, whose sum is σ = 2010112131222. Its totient is φ = 2010112131220.

The previous prime is 2010112131197. The next prime is 2010112131301. The reversal of 2010112131221 is 1221312110102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1864901596996 + 145210534225 = 1365614^2 + 381065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010112131221 - 2²² = 2010107936917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2010112131221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010112134221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005056065610 + 1005056065611.

It is an arithmetic number, because the mean of its divisors is an integer number (1005056065611).

Almost surely, 2^{2010112131221} is an apocalyptic number.

It is an amenable number.

2010112131221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010112131221 is an equidigital number, since it uses as much as digits as its factorization.

2010112131221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2010112131221 its reverse (1221312110102), we get a palindrome (3231424241323).

The spelling of 2010112131221 in words is "two trillion, ten billion, one hundred twelve million, one hundred thirty-one thousand, two hundred twenty-one".