40220100021 has 16 divisors (see below), whose sum is σ = 53763248448. Its totient is φ = 26745264000.

The previous prime is 40220100007. The next prime is 40220100103. The reversal of 40220100021 is 12000102204.

40220100021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40220100021 - 2²⁹ = 39683229109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220100821) 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, 1960306 + ... + 1980716.

It is an arithmetic number, because the mean of its divisors is an integer number (3360203028).

Almost surely, 2^40220100021 is an apocalyptic number.

It is an amenable number.

40220100021 is a deficient number, since it is larger than the sum of its proper divisors (13543148427).

40220100021 is a wasteful number, since it uses less digits than its factorization.

40220100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22052.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 40220100021 its reverse (12000102204), we get a palindrome (52220202225).

The spelling of 40220100021 in words is "forty billion, two hundred twenty million, one hundred thousand, twenty-one".