1202001122021 has 4 divisors (see below), whose sum is σ = 1373715568032. Its totient is φ = 1030286676012.

The previous prime is 1202001122011. The next prime is 1202001122029. The reversal of 1202001122021 is 1202211002021.

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 1202001122021 - 2³⁸ = 927123215077 is a prime.

It is a super-2 number, since 2×1202001122021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202001121987 and 1202001122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202001122029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85857222995 + ... + 85857223008.

It is an arithmetic number, because the mean of its divisors is an integer number (343428892008).

Almost surely, 2^{1202001122021} is an apocalyptic number.

It is an amenable number.

1202001122021 is a deficient number, since it is larger than the sum of its proper divisors (171714446011).

1202001122021 is an equidigital number, since it uses as much as digits as its factorization.

1202001122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171714446010.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1202001122021 its reverse (1202211002021), we get a palindrome (2404212124042).

The spelling of 1202001122021 in words is "one trillion, two hundred two billion, one million, one hundred twenty-two thousand, twenty-one".