2220021429 has 16 divisors (see below), whose sum is σ = 2998258560. Its totient is φ = 1460954880.

The previous prime is 2220021409. The next prime is 2220021473. The reversal of 2220021429 is 9241200222.

It is not a de Polignac number, because 2220021429 - 2⁹ = 2220020917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220021399 and 2220021408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220021409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161889 + ... + 175065.

It is an arithmetic number, because the mean of its divisors is an integer number (187391160).

Almost surely, 2^2220021429 is an apocalyptic number.

It is an amenable number.

2220021429 is a deficient number, since it is larger than the sum of its proper divisors (778237131).

2220021429 is a wasteful number, since it uses less digits than its factorization.

2220021429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13900.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2220021429 is about 47117.1033596082. The cubic root of 2220021429 is about 1304.5249473906.

The spelling of 2220021429 in words is "two billion, two hundred twenty million, twenty-one thousand, four hundred twenty-nine".