40220000121 has 48 divisors (see below), whose sum is σ = 62919219264. Its totient is φ = 22785670656.

The previous prime is 40220000099. The next prime is 40220000159. The reversal of 40220000121 is 12100002204.

It is not a de Polignac number, because 40220000121 - 2⁷ = 40219999993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40220000097 and 40220000106.

It is not an unprimeable number, because it can be changed into a prime (40220000321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10948341 + ... + 10952013.

It is an arithmetic number, because the mean of its divisors is an integer number (1310817068).

Almost surely, 2^40220000121 is an apocalyptic number.

It is an amenable number.

40220000121 is a deficient number, since it is larger than the sum of its proper divisors (22699219143).

40220000121 is a wasteful number, since it uses less digits than its factorization.

40220000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310 (or 4303 counting only the distinct ones).

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

Adding to 40220000121 its reverse (12100002204), we get a palindrome (52320002325).

The spelling of 40220000121 in words is "forty billion, two hundred twenty million, one hundred twenty-one", and thus it is an aban number.