40121001024215 has 16 divisors (see below), whose sum is σ = 48357767318880. Its totient is φ = 31955103573120.

The previous prime is 40121001024187. The next prime is 40121001024229. The reversal of 40121001024215 is 51242010012104.

It is not a de Polignac number, because 40121001024215 - 2⁶ = 40121001024151 is a prime.

It is a super-2 number, since 2×40121001024215² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23282972 + ... + 24946718.

It is an arithmetic number, because the mean of its divisors is an integer number (3022360457430).

Almost surely, 2^{40121001024215} is an apocalyptic number.

40121001024215 is a deficient number, since it is larger than the sum of its proper divisors (8236766294665).

40121001024215 is a wasteful number, since it uses less digits than its factorization.

40121001024215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685042.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 40121001024215 its reverse (51242010012104), we get a palindrome (91363011036319).

The spelling of 40121001024215 in words is "forty trillion, one hundred twenty-one billion, one million, twenty-four thousand, two hundred fifteen".