1221077132110 has 16 divisors (see below), whose sum is σ = 2397751459632. Its totient is φ = 444028048000.

The previous prime is 1221077132089. The next prime is 1221077132123. The reversal of 1221077132110 is 112317701221.

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, 5550350491 + ... + 5550350710.

It is an arithmetic number, because the mean of its divisors is an integer number (149859466227).

Almost surely, 2^{1221077132110} is an apocalyptic number.

1221077132110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221077132110 is a deficient number, since it is larger than the sum of its proper divisors (1176674327522).

1221077132110 is a wasteful number, since it uses less digits than its factorization.

1221077132110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100701219.

The product of its (nonzero) digits is 1176, while the sum is 28.

The spelling of 1221077132110 in words is "one trillion, two hundred twenty-one billion, seventy-seven million, one hundred thirty-two thousand, one hundred ten".