220021012199 has 4 divisors (see below), whose sum is σ = 220088693400. Its totient is φ = 219953331000.

The previous prime is 220021012069. The next prime is 220021012201. The reversal of 220021012199 is 991210120022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991210120022 = 2 ⋅495605060011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220021012199 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 (220021012699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33835724 + ... + 33842225.

It is an arithmetic number, because the mean of its divisors is an integer number (55022173350).

Almost surely, 2^220021012199 is an apocalyptic number.

220021012199 is a deficient number, since it is larger than the sum of its proper divisors (67681201).

220021012199 is an equidigital number, since it uses as much as digits as its factorization.

220021012199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67681200.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 220021012199 in words is "two hundred twenty billion, twenty-one million, twelve thousand, one hundred ninety-nine".