1221310200802 has 16 divisors (see below), whose sum is σ = 1833179058432. Its totient is φ = 610250612400.

The previous prime is 1221310200797. The next prime is 1221310200811. The reversal of 1221310200802 is 2080020131221.

It is a super-2 number, since 2×1221310200802² (a number of 25 digits) contains 22 as substring.

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, 31403373 + ... + 31442239.

It is an arithmetic number, because the mean of its divisors is an integer number (114573691152).

Almost surely, 2^{1221310200802} is an apocalyptic number.

1221310200802 is a deficient number, since it is larger than the sum of its proper divisors (611868857630).

1221310200802 is a wasteful number, since it uses less digits than its factorization.

1221310200802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48873.

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 1221310200802 in words is "one trillion, two hundred twenty-one billion, three hundred ten million, two hundred thousand, eight hundred two".