1002022123201 has 4 divisors (see below), whose sum is σ = 1093115043504. Its totient is φ = 910929202900.

The previous prime is 1002022123189. The next prime is 1002022123211. The reversal of 1002022123201 is 1023212202001.

It is a happy number.

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 1002022123201 - 2³⁵ = 967662384833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002022123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45546460135 + ... + 45546460156.

It is an arithmetic number, because the mean of its divisors is an integer number (273278760876).

Almost surely, 2^{1002022123201} is an apocalyptic number.

1002022123201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002022123201 is a deficient number, since it is larger than the sum of its proper divisors (91092920303).

1002022123201 is an equidigital number, since it uses as much as digits as its factorization.

1002022123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91092920302.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1002022123201 its reverse (1023212202001), we get a palindrome (2025234325202).

The spelling of 1002022123201 in words is "one trillion, two billion, twenty-two million, one hundred twenty-three thousand, two hundred one".