1211351242162 has 8 divisors (see below), whose sum is σ = 1844146667376. Its totient is φ = 596635686372.

The previous prime is 1211351242141. The next prime is 1211351242163. The reversal of 1211351242162 is 2612421531121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1211351242163) 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, 4519967188 + ... + 4519967455.

It is an arithmetic number, because the mean of its divisors is an integer number (230518333422).

Almost surely, 2^{1211351242162} is an apocalyptic number.

1211351242162 is a deficient number, since it is larger than the sum of its proper divisors (632795425214).

1211351242162 is an equidigital number, since it uses as much as digits as its factorization.

1211351242162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039934712.

The product of its digits is 5760, while the sum is 31.

Adding to 1211351242162 its reverse (2612421531121), we get a palindrome (3823772773283).

The spelling of 1211351242162 in words is "one trillion, two hundred eleven billion, three hundred fifty-one million, two hundred forty-two thousand, one hundred sixty-two".