1220101021199 has 32 divisors (see below), whose sum is σ = 1297750671360. Its totient is φ = 1143880358400.

The previous prime is 1220101021177. The next prime is 1220101021241. The reversal of 1220101021199 is 9911201010221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220101021199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220100021199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545417309 + ... + 545419545.

It is an arithmetic number, because the mean of its divisors is an integer number (40554708480).

Almost surely, 2^{1220101021199} is an apocalyptic number.

1220101021199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1220101021199 is a deficient number, since it is larger than the sum of its proper divisors (77649650161).

1220101021199 is a wasteful number, since it uses less digits than its factorization.

1220101021199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 1220101021199 in words is "one trillion, two hundred twenty billion, one hundred one million, twenty-one thousand, one hundred ninety-nine".