222121702081 has 4 divisors (see below), whose sum is σ = 233812318000. Its totient is φ = 210431086164.

The previous prime is 222121702079. The next prime is 222121702093. The reversal of 222121702081 is 180207121222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222121702081 - 2¹ = 222121702079 is a prime.

It is a super-2 number, since 2×222121702081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121702001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5845307931 + ... + 5845307968.

It is an arithmetic number, because the mean of its divisors is an integer number (58453079500).

Almost surely, 2^222121702081 is an apocalyptic number.

It is an amenable number.

222121702081 is a deficient number, since it is larger than the sum of its proper divisors (11690615919).

222121702081 is a wasteful number, since it uses less digits than its factorization.

222121702081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690615918.

The product of its (nonzero) digits is 1792, while the sum is 28.

The spelling of 222121702081 in words is "two hundred twenty-two billion, one hundred twenty-one million, seven hundred two thousand, eighty-one".