121122200012 has 24 divisors (see below), whose sum is σ = 231472496640. Its totient is φ = 54998591760.

The previous prime is 121122200011. The next prime is 121122200029. The reversal of 121122200012 is 210002221121.

It is a self number, because there is not a number n which added to its sum of digits gives 121122200012.

It is not an unprimeable number, because it can be changed into a prime (121122200011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380812 + ... + 1465907.

It is an arithmetic number, because the mean of its divisors is an integer number (9644687360).

Almost surely, 2^121122200012 is an apocalyptic number.

It is an amenable number.

121122200012 is a deficient number, since it is larger than the sum of its proper divisors (110350296628).

121122200012 is a wasteful number, since it uses less digits than its factorization.

121122200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847701 (or 2847699 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121122200012 its reverse (210002221121), we get a palindrome (331124421133).

The spelling of 121122200012 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred thousand, twelve".