1021012222012 has 24 divisors (see below), whose sum is σ = 1811616075360. Its totient is φ = 503445089280.

The previous prime is 1021012221989. The next prime is 1021012222033. The reversal of 1021012222012 is 2102222101201.

It is a happy number.

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, 4573312 + ... + 4791367.

It is an arithmetic number, because the mean of its divisors is an integer number (75484003140).

Almost surely, 2^{1021012222012} is an apocalyptic number.

It is an amenable number.

1021012222012 is a deficient number, since it is larger than the sum of its proper divisors (790603853348).

1021012222012 is a wasteful number, since it uses less digits than its factorization.

1021012222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9365061 (or 9365059 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021012222012 its reverse (2102222101201), we get a palindrome (3123234323213).

The spelling of 1021012222012 in words is "one trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, twelve".