2030021221 has 16 divisors (see below), whose sum is σ = 2179808064. Its totient is φ = 1883706624.

The previous prime is 2030021207. The next prime is 2030021251. The reversal of 2030021221 is 1221200302.

It is not a de Polignac number, because 2030021221 - 2⁷ = 2030021093 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 (2030021251) 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, 863770 + ... + 866116.

It is an arithmetic number, because the mean of its divisors is an integer number (136238004).

Almost surely, 2^2030021221 is an apocalyptic number.

It is an amenable number.

2030021221 is a deficient number, since it is larger than the sum of its proper divisors (149786843).

2030021221 is a wasteful number, since it uses less digits than its factorization.

2030021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2030021221 is about 45055.7568019892. The cubic root of 2030021221 is about 1266.1938291091.

Adding to 2030021221 its reverse (1221200302), we get a palindrome (3251221523).

The spelling of 2030021221 in words is "two billion, thirty million, twenty-one thousand, two hundred twenty-one".