1011020022012 has 144 divisors (see below), whose sum is σ = 3191387204096. Its totient is φ = 242402371200.

The previous prime is 1011020022011. The next prime is 1011020022073. The reversal of 1011020022012 is 2102200201101.

It is a super-2 number, since 2×1011020022012² (a number of 25 digits) contains 22 as substring.

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 (1011020022011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3693664 + ... + 3957927.

Almost surely, 2^{1011020022012} is an apocalyptic number.

1011020022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011020022012 is an abundant number, since it is smaller than the sum of its proper divisors (2180367182084).

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

1011020022012 is a wasteful number, since it uses less digits than its factorization.

1011020022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651640 (or 7651627 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1011020022012 its reverse (2102200201101), we get a palindrome (3113220223113).

The spelling of 1011020022012 in words is "one trillion, eleven billion, twenty million, twenty-two thousand, twelve".