1221110099974 has 8 divisors (see below), whose sum is σ = 1832590706760. Its totient is φ = 610246531056.

The previous prime is 1221110099927. The next prime is 1221110099999. The reversal of 1221110099974 is 4799900111221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1221110099974² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154254519 + ... + 154262434.

It is an arithmetic number, because the mean of its divisors is an integer number (229073838345).

Almost surely, 2^{1221110099974} is an apocalyptic number.

1221110099974 is a deficient number, since it is larger than the sum of its proper divisors (611480606786).

1221110099974 is a wasteful number, since it uses less digits than its factorization.

1221110099974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308518934.

The product of its (nonzero) digits is 81648, while the sum is 46.

The spelling of 1221110099974 in words is "one trillion, two hundred twenty-one billion, one hundred ten million, ninety-nine thousand, nine hundred seventy-four".