1220100222195 has 48 divisors (see below), whose sum is σ = 2192116530240. Its totient is φ = 627032087808.

The previous prime is 1220100222179. The next prime is 1220100222217. The reversal of 1220100222195 is 5912220010221.

It is a happy number.

It is not a de Polignac number, because 1220100222195 - 2⁴ = 1220100222179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 272952 + ... + 1585781.

It is an arithmetic number, because the mean of its divisors is an integer number (45669094380).

Almost surely, 2^{1220100222195} is an apocalyptic number.

1220100222195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220100222195 is a deficient number, since it is larger than the sum of its proper divisors (972016308045).

1220100222195 is a wasteful number, since it uses less digits than its factorization.

1220100222195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859276 (or 1859273 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 1220100222195 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred twenty-two thousand, one hundred ninety-five".