1011010221012 has 36 divisors (see below), whose sum is σ = 2592976631168. Its totient is φ = 306366733200.

The previous prime is 1011010220971. The next prime is 1011010221019. The reversal of 1011010221012 is 2101220101101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011010221019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348142564 + ... + 348145467.

Almost surely, 2^{1011010221012} is an apocalyptic number.

1011010221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011010221012 is an abundant number, since it is smaller than the sum of its proper divisors (1581966410156).

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

1011010221012 is a wasteful number, since it uses less digits than its factorization.

1011010221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696288060 (or 696288047 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011010221012 its reverse (2101220101101), we get a palindrome (3112230322113).

The spelling of 1011010221012 in words is "one trillion, eleven billion, ten million, two hundred twenty-one thousand, twelve".