1021124211012 has 18 divisors (see below), whose sum is σ = 2581175089038. Its totient is φ = 340374736992.

The previous prime is 1021124210999. The next prime is 1021124211031. The reversal of 1021124211012 is 2101124211201.

1021124211012 is a `hidden beast` number, since 10 + 211 + 2 + 421 + 10 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 993881388096 + 27242822916 = 996936^2 + 165054^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 14182280673 + ... + 14182280744.

Almost surely, 2^{1021124211012} is an apocalyptic number.

1021124211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021124211012 is an abundant number, since it is smaller than the sum of its proper divisors (1560050878026).

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

1021124211012 is a wasteful number, since it uses less digits than its factorization.

1021124211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28364561427 (or 28364561422 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1021124211012 its reverse (2101124211201), we get a palindrome (3122248422213).

The spelling of 1021124211012 in words is "one trillion, twenty-one billion, one hundred twenty-four million, two hundred eleven thousand, twelve".