2021404022 has 16 divisors (see below), whose sum is σ = 3308601600. Its totient is φ = 918584040.

The previous prime is 2021403983. The next prime is 2021404027. The reversal of 2021404022 is 2204041202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021404027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98879 + ... + 117557.

It is an arithmetic number, because the mean of its divisors is an integer number (206787600).

Almost surely, 2^2021404022 is an apocalyptic number.

2021404022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2021404022 is a deficient number, since it is larger than the sum of its proper divisors (1287197578).

2021404022 is a wasteful number, since it uses less digits than its factorization.

2021404022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23611.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2021404022 is about 44960.0269350453. The cubic root of 2021404022 is about 1264.3996739065.

Adding to 2021404022 its reverse (2204041202), we get a palindrome (4225445224).

The spelling of 2021404022 in words is "two billion, twenty-one million, four hundred four thousand, twenty-two".