40222221550 has 24 divisors (see below), whose sum is σ = 85500951696. Its totient is φ = 13790475840.

The previous prime is 40222221547. The next prime is 40222221623. The reversal of 40222221550 is 5512222204.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57459967 + ... + 57460666.

It is an arithmetic number, because the mean of its divisors is an integer number (3562539654).

Almost surely, 2^40222221550 is an apocalyptic number.

40222221550 is an abundant number, since it is smaller than the sum of its proper divisors (45278730146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40222221550 is a wasteful number, since it uses less digits than its factorization.

40222221550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114920652 (or 114920647 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 40222221550 its reverse (5512222204), we get a palindrome (45734443754).

The spelling of 40222221550 in words is "forty billion, two hundred twenty-two million, two hundred twenty-one thousand, five hundred fifty".