1012201212222 has 40 divisors (see below), whose sum is σ = 2269186003656. Its totient is φ = 337235948208.

The previous prime is 1012201212221. The next prime is 1012201212227. The reversal of 1012201212222 is 2222121022101.

It is a happy number.

1012201212222 is a `hidden beast` number, since 10 + 1 + 220 + 1 + 212 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1012201212195 and 1012201212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201212221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1189128 + ... + 1854299.

Almost surely, 2^{1012201212222} is an apocalyptic number.

1012201212222 is an abundant number, since it is smaller than the sum of its proper divisors (1256984791434).

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

1012201212222 is a wasteful number, since it uses less digits than its factorization.

1012201212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045494 (or 3045485 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1012201212222 its reverse (2222121022101), we get a palindrome (3234322234323).

The spelling of 1012201212222 in words is "one trillion, twelve billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".