40122220211921 has 8 divisors (see below), whose sum is σ = 40128141456000. Its totient is φ = 40116299388048.

The previous prime is 40122220211803. The next prime is 40122220211939. The reversal of 40122220211921 is 12911202222104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40122220211921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40122220211321) 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, 225155960 + ... + 225334086.

It is an arithmetic number, because the mean of its divisors is an integer number (5016017682000).

Almost surely, 2^{40122220211921} is an apocalyptic number.

It is an amenable number.

40122220211921 is a deficient number, since it is larger than the sum of its proper divisors (5921244079).

40122220211921 is a wasteful number, since it uses less digits than its factorization.

40122220211921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210103.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 40122220211921 in words is "forty trillion, one hundred twenty-two billion, two hundred twenty million, two hundred eleven thousand, nine hundred twenty-one".