1201226623122 has 16 divisors (see below), whose sum is σ = 2402498354112. Its totient is φ = 400401356400.

The previous prime is 1201226623087. The next prime is 1201226623141. The reversal of 1201226623122 is 2213266221021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201226623122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528254 + ... + 2176697.

It is an arithmetic number, because the mean of its divisors is an integer number (150156147132).

Almost surely, 2^{1201226623122} is an apocalyptic number.

1201226623122 is an abundant number, since it is smaller than the sum of its proper divisors (1201271730990).

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

1201226623122 is a wasteful number, since it uses less digits than its factorization.

1201226623122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758993.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 1201226623122 in words is "one trillion, two hundred one billion, two hundred twenty-six million, six hundred twenty-three thousand, one hundred twenty-two".