1011200000022 has 24 divisors (see below), whose sum is σ = 2266482759840. Its totient is φ = 325443678000.

The previous prime is 1011199999987. The next prime is 1011200000113. The reversal of 1011200000022 is 2200000021101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968581854 + ... + 968582897.

It is an arithmetic number, because the mean of its divisors is an integer number (94436781660).

Almost surely, 2^{1011200000022} is an apocalyptic number.

1011200000022 is an abundant number, since it is smaller than the sum of its proper divisors (1255282759818).

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

1011200000022 is a wasteful number, since it uses less digits than its factorization.

1011200000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937164788 (or 1937164785 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1011200000022 its reverse (2200000021101), we get a palindrome (3211200021123).

The spelling of 1011200000022 in words is "one trillion, eleven billion, two hundred million, twenty-two", and thus it is an aban number.