1022121331201 has 4 divisors (see below), whose sum is σ = 1022126099904. Its totient is φ = 1022116562500.

The previous prime is 1022121331193. The next prime is 1022121331237. The reversal of 1022121331201 is 1021331212201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022121331201 - 2³ = 1022121331193 is a prime.

It is a super-2 number, since 2×1022121331201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022121331291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2046925 + ... + 2496826.

It is an arithmetic number, because the mean of its divisors is an integer number (255531524976).

Almost surely, 2^{1022121331201} is an apocalyptic number.

It is an amenable number.

1022121331201 is a deficient number, since it is larger than the sum of its proper divisors (4768703).

1022121331201 is an equidigital number, since it uses as much as digits as its factorization.

1022121331201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4768702.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1022121331201 its reverse (1021331212201), we get a palindrome (2043452543402).

The spelling of 1022121331201 in words is "one trillion, twenty-two billion, one hundred twenty-one million, three hundred thirty-one thousand, two hundred one".