1221015212014 has 16 divisors (see below), whose sum is σ = 2001848134608. Its totient is φ = 555134355072.

The previous prime is 1221015211993. The next prime is 1221015212023. The reversal of 1221015212014 is 4102125101221.

It is a congruent number.

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, 350461867 + ... + 350465350.

It is an arithmetic number, because the mean of its divisors is an integer number (125115508413).

Almost surely, 2^{1221015212014} is an apocalyptic number.

1221015212014 is a deficient number, since it is larger than the sum of its proper divisors (780832922594).

1221015212014 is a wasteful number, since it uses less digits than its factorization.

1221015212014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700927299.

The product of its (nonzero) digits is 320, while the sum is 22.

The spelling of 1221015212014 in words is "one trillion, two hundred twenty-one billion, fifteen million, two hundred twelve thousand, fourteen".