1021120122201 has 16 divisors (see below), whose sum is σ = 1372081279296. Its totient is φ = 675466485696.

The previous prime is 1021120122181. The next prime is 1021120122277. The reversal of 1021120122201 is 1022210211201.

It is not a de Polignac number, because 1021120122201 - 2⁹ = 1021120121689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021120120201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403490 + ... + 2003003.

It is an arithmetic number, because the mean of its divisors is an integer number (85755079956).

Almost surely, 2^{1021120122201} is an apocalyptic number.

It is an amenable number.

1021120122201 is a deficient number, since it is larger than the sum of its proper divisors (350961157095).

1021120122201 is a wasteful number, since it uses less digits than its factorization.

1021120122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407272.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021120122201 its reverse (1022210211201), we get a palindrome (2043330333402).

The spelling of 1021120122201 in words is "one trillion, twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, two hundred one".