222021670055 has 8 divisors (see below), whose sum is σ = 266430099552. Its totient is φ = 177614605728.

The previous prime is 222021670019. The next prime is 222021670061. The reversal of 222021670055 is 550076120222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222021670055 - 2¹² = 222021665959 is a prime.

It is a super-2 number, since 2×222021670055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 59237 + ... + 668993.

It is an arithmetic number, because the mean of its divisors is an integer number (33303762444).

Almost surely, 2^222021670055 is an apocalyptic number.

222021670055 is a deficient number, since it is larger than the sum of its proper divisors (44408429497).

222021670055 is an equidigital number, since it uses as much as digits as its factorization.

222021670055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682585.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 222021670055 its reverse (550076120222), we get a palindrome (772097790277).

The spelling of 222021670055 in words is "two hundred twenty-two billion, twenty-one million, six hundred seventy thousand, fifty-five".