10001122021012 has 12 divisors (see below), whose sum is σ = 17520562866996. Its totient is φ = 4995246916160.

The previous prime is 10001122021003. The next prime is 10001122021027. The reversal of 10001122021012 is 21012022110001.

It can be written as a sum of positive squares in 2 ways, for example, as 6998754906256 + 3002367114756 = 2645516^2 + 1732734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10001122020983 and 10001122021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328519353 + ... + 1328526880.

It is an arithmetic number, because the mean of its divisors is an integer number (1460046905583).

Almost surely, 2^{10001122021012} is an apocalyptic number.

It is an amenable number.

10001122021012 is a deficient number, since it is larger than the sum of its proper divisors (7519440845984).

10001122021012 is a wasteful number, since it uses less digits than its factorization.

10001122021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657047178 (or 2657047176 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10001122021012 its reverse (21012022110001), we get a palindrome (31013144131013).

The spelling of 10001122021012 in words is "ten trillion, one billion, one hundred twenty-two million, twenty-one thousand, twelve".