1221405014002 has 16 divisors (see below), whose sum is σ = 1894397041152. Its totient is φ = 590005776960.

The previous prime is 1221405013987. The next prime is 1221405014057. The reversal of 1221405014002 is 2004105041221.

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, 16573758 + ... + 16647289.

It is an arithmetic number, because the mean of its divisors is an integer number (118399815072).

Almost surely, 2^{1221405014002} is an apocalyptic number.

1221405014002 is a deficient number, since it is larger than the sum of its proper divisors (672992027150).

1221405014002 is a wasteful number, since it uses less digits than its factorization.

1221405014002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33221673.

The product of its (nonzero) digits is 640, while the sum is 22.

The spelling of 1221405014002 in words is "one trillion, two hundred twenty-one billion, four hundred five million, fourteen thousand, two".