222477745821881 has 16 divisors (see below), whose sum is σ = 245512749202560. Its totient is φ = 199916267066880.

The previous prime is 222477745821853. The next prime is 222477745821911. The reversal of 222477745821881 is 188128547774222.

It is a cyclic number.

It is not a de Polignac number, because 222477745821881 - 2⁶ = 222477745821817 is a prime.

It is a super-2 number, since 2×222477745821881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222477745823881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129957461 + ... + 131658258.

It is an arithmetic number, because the mean of its divisors is an integer number (15344546825160).

Almost surely, 2^{222477745821881} is an apocalyptic number.

It is an amenable number.

222477745821881 is a deficient number, since it is larger than the sum of its proper divisors (23035003380679).

222477745821881 is a wasteful number, since it uses less digits than its factorization.

222477745821881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261616624.

The product of its digits is 224788480, while the sum is 68.

The spelling of 222477745821881 in words is "two hundred twenty-two trillion, four hundred seventy-seven billion, seven hundred forty-five million, eight hundred twenty-one thousand, eight hundred eighty-one".