1202132312021 has 4 divisors (see below), whose sum is σ = 1272845977452. Its totient is φ = 1131418646592.

The previous prime is 1202132311967. The next prime is 1202132312027.

1202132312021 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1087828140100 + 114304171921 = 1042990^2 + 338089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202132312021 - 2²² = 1202128117717 is a prime.

It is a super-2 number, since 2×1202132312021² (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 = 1202132311984 and 1202132312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202132312027) 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, 35356832690 + ... + 35356832723.

It is an arithmetic number, because the mean of its divisors is an integer number (318211494363).

Almost surely, 2^{1202132312021} is an apocalyptic number.

It is an amenable number.

1202132312021 is a deficient number, since it is larger than the sum of its proper divisors (70713665431).

1202132312021 is an equidigital number, since it uses as much as digits as its factorization.

1202132312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70713665430.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 1202132312021 in words is "one trillion, two hundred two billion, one hundred thirty-two million, three hundred twelve thousand, twenty-one".