1012221202212 has 60 divisors (see below), whose sum is σ = 2886704920176. Its totient is φ = 306733696560.

The previous prime is 1012221202177. The next prime is 1012221202229. The reversal of 1012221202212 is 2122021222101.

It is a happy number.

1012221202212 is a `hidden beast` number, since 101 + 222 + 120 + 221 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 142002778 + ... + 142009905.

Almost surely, 2^{1012221202212} is an apocalyptic number.

1012221202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012221202212 is an abundant number, since it is smaller than the sum of its proper divisors (1874483717964).

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

1012221202212 is a wasteful number, since it uses less digits than its factorization.

1012221202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284012710 (or 284012699 counting only the distinct ones).

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

Adding to 1012221202212 its reverse (2122021222101), we get a palindrome (3134242424313).

The spelling of 1012221202212 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred two thousand, two hundred twelve".