22211654540 has 24 divisors (see below), whose sum is σ = 46652963280. Its totient is φ = 8883044928.

The previous prime is 22211654537. The next prime is 22211654551. The reversal of 22211654540 is 4545611222.

It is a super-2 number, since 2×22211654540² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22211654497 and 22211654506.

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, 14831 + ... + 211289.

It is an arithmetic number, because the mean of its divisors is an integer number (1943873470).

Almost surely, 2^22211654540 is an apocalyptic number.

22211654540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211654540 is an abundant number, since it is smaller than the sum of its proper divisors (24441308740).

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

22211654540 is a wasteful number, since it uses less digits than its factorization.

22211654540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202121 (or 202119 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 22211654540 in words is "twenty-two billion, two hundred eleven million, six hundred fifty-four thousand, five hundred forty".