22211554240542 has 16 divisors (see below), whose sum is σ = 44469722457360. Its totient is φ = 7396082417472.

The previous prime is 22211554240489. The next prime is 22211554240559. The reversal of 22211554240542 is 24504245511222.

It is a self number, because there is not a number n which added to its sum of digits gives 22211554240542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942242817 + ... + 1942254252.

It is an arithmetic number, because the mean of its divisors is an integer number (2779357653585).

Almost surely, 2^{22211554240542} is an apocalyptic number.

22211554240542 is an abundant number, since it is smaller than the sum of its proper divisors (22258168216818).

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

22211554240542 is a wasteful number, since it uses less digits than its factorization.

22211554240542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884498027.

The product of its (nonzero) digits is 256000, while the sum is 39.

Adding to 22211554240542 its reverse (24504245511222), we get a palindrome (46715799751764).

The spelling of 22211554240542 in words is "twenty-two trillion, two hundred eleven billion, five hundred fifty-four million, two hundred forty thousand, five hundred forty-two".