2219920101 has 40 divisors (see below), whose sum is σ = 3920632320. Its totient is φ = 1224774432.

The previous prime is 2219920093. The next prime is 2219920133. The reversal of 2219920101 is 1010299122.

It is not a de Polignac number, because 2219920101 - 2³ = 2219920093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219920201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51061 + ... + 83946.

It is an arithmetic number, because the mean of its divisors is an integer number (98015808).

Almost surely, 2^2219920101 is an apocalyptic number.

2219920101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2219920101 is a deficient number, since it is larger than the sum of its proper divisors (1700712219).

2219920101 is a wasteful number, since it uses less digits than its factorization.

2219920101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135055 (or 135046 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 2219920101 is about 47116.0280690128. The cubic root of 2219920101 is about 1304.5050996971.

The spelling of 2219920101 in words is "two billion, two hundred nineteen million, nine hundred twenty thousand, one hundred one".