22120220219954 has 4 divisors (see below), whose sum is σ = 33180330329934. Its totient is φ = 11060110109976.

The previous prime is 22120220219953. The next prime is 22120220219957. The reversal of 22120220219954 is 45991202202122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20821014630025 + 1299205589929 = 4563005^2 + 1139827^2 .

It is not an unprimeable number, because it can be changed into a prime (22120220219953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530055054987 + ... + 5530055054990.

Almost surely, 2^{22120220219954} is an apocalyptic number.

22120220219954 is a deficient number, since it is larger than the sum of its proper divisors (11060110109980).

22120220219954 is a wasteful number, since it uses less digits than its factorization.

22120220219954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060110109979.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 22120220219954 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty million, two hundred nineteen thousand, nine hundred fifty-four".