222101111121012 has 24 divisors (see below), whose sum is σ = 575817695499200. Its totient is φ = 74033703706968.

The previous prime is 222101111120983. The next prime is 222101111121023. The reversal of 222101111121012 is 210121111101222.

It is a happy number.

It is a super-2 number, since 2×222101111121012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1028245884712 + ... + 1028245884927.

Almost surely, 2^{222101111121012} is an apocalyptic number.

It is an amenable number.

222101111121012 is an abundant number, since it is smaller than the sum of its proper divisors (353716584378188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222101111121012 is a wasteful number, since it uses less digits than its factorization.

222101111121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056491769652 (or 2056491769644 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 222101111121012 its reverse (210121111101222), we get a palindrome (432222222222234).

The spelling of 222101111121012 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred eleven million, one hundred twenty-one thousand, twelve".