1222010131211 has 4 divisors (see below), whose sum is σ = 1225057538424. Its totient is φ = 1218962724000.

The previous prime is 1222010131201. The next prime is 1222010131213. The reversal of 1222010131211 is 1121310102221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222010131211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222010131211.

It is not an unprimeable number, because it can be changed into a prime (1222010131213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523703005 + ... + 1523703806.

It is an arithmetic number, because the mean of its divisors is an integer number (306264384606).

Almost surely, 2^{1222010131211} is an apocalyptic number.

1222010131211 is a deficient number, since it is larger than the sum of its proper divisors (3047407213).

1222010131211 is an equidigital number, since it uses as much as digits as its factorization.

1222010131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047407212.

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

Adding to 1222010131211 its reverse (1121310102221), we get a palindrome (2343320233432).

The spelling of 1222010131211 in words is "one trillion, two hundred twenty-two billion, ten million, one hundred thirty-one thousand, two hundred eleven".