222012111021 has 8 divisors (see below), whose sum is σ = 296018516640. Its totient is φ = 148006889712.

The previous prime is 222012111001. The next prime is 222012111037. The reversal of 222012111021 is 120111210222.

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

It is not a de Polignac number, because 222012111021 - 2¹⁰ = 222012109997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012111001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331170 + ... + 744108.

It is an arithmetic number, because the mean of its divisors is an integer number (37002314580).

Almost surely, 2^222012111021 is an apocalyptic number.

It is an amenable number.

222012111021 is a deficient number, since it is larger than the sum of its proper divisors (74006405619).

222012111021 is a wasteful number, since it uses less digits than its factorization.

222012111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592155.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222012111021 its reverse (120111210222), we get a palindrome (342123321243).

The spelling of 222012111021 in words is "two hundred twenty-two billion, twelve million, one hundred eleven thousand, twenty-one".