40022014121 has 4 divisors (see below), whose sum is σ = 40112357712. Its totient is φ = 39931670532.

The previous prime is 40022014099. The next prime is 40022014141. The reversal of 40022014121 is 12141022004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40022014121 is a prime.

It is a super-2 number, since 2×40022014121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40022014121.

It is not an unprimeable number, because it can be changed into a prime (40022014141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45171131 + ... + 45172016.

It is an arithmetic number, because the mean of its divisors is an integer number (10028089428).

Almost surely, 2^40022014121 is an apocalyptic number.

It is an amenable number.

40022014121 is a deficient number, since it is larger than the sum of its proper divisors (90343591).

40022014121 is an equidigital number, since it uses as much as digits as its factorization.

40022014121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90343590.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 40022014121 its reverse (12141022004), we get a palindrome (52163036125).

The spelling of 40022014121 in words is "forty billion, twenty-two million, fourteen thousand, one hundred twenty-one".