1021211000122 has 32 divisors (see below), whose sum is σ = 1605813699600. Its totient is φ = 486447897600.

The previous prime is 1021211000111. The next prime is 1021211000179. The reversal of 1021211000122 is 2210001121201.

It can be written as a sum of positive squares in 8 ways, for example, as 936000135841 + 85210864281 = 967471^2 + 291909^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188472 + ... + 1858732.

Almost surely, 2^{1021211000122} is an apocalyptic number.

1021211000122 is a deficient number, since it is larger than the sum of its proper divisors (584602699478).

1021211000122 is a wasteful number, since it uses less digits than its factorization.

1021211000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670642.

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

Adding to 1021211000122 its reverse (2210001121201), we get a palindrome (3231212121323).

The spelling of 1021211000122 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred twenty-two", and thus it is an aban number.