40222514621 has 2 divisors, whose sum is σ = 40222514622. Its totient is φ = 40222514620.

The previous prime is 40222514617. The next prime is 40222514681. The reversal of 40222514621 is 12641522204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30064092100 + 10158422521 = 173390^2 + 100789^2 .

It is a cyclic number.

It is not a de Polignac number, because 40222514621 - 2² = 40222514617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40222514681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111257310 + 20111257311.

It is an arithmetic number, because the mean of its divisors is an integer number (20111257311).

Almost surely, 2^40222514621 is an apocalyptic number.

It is an amenable number.

40222514621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222514621 is an equidigital number, since it uses as much as digits as its factorization.

40222514621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 40222514621 in words is "forty billion, two hundred twenty-two million, five hundred fourteen thousand, six hundred twenty-one".