1202011102021 has 4 divisors (see below), whose sum is σ = 1272717637452. Its totient is φ = 1131304566592.

The previous prime is 1202011101989. The next prime is 1202011102027.

1202011102021 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 776628000225 + 425383101796 = 881265^2 + 652214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202011102021 - 2⁵ = 1202011101989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202011101992 and 1202011102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202011102027) 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, 35353267690 + ... + 35353267723.

It is an arithmetic number, because the mean of its divisors is an integer number (318179409363).

Almost surely, 2^{1202011102021} is an apocalyptic number.

It is an amenable number.

1202011102021 is a deficient number, since it is larger than the sum of its proper divisors (70706535431).

1202011102021 is an equidigital number, since it uses as much as digits as its factorization.

1202011102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70706535430.

The product of its (nonzero) digits is 16, while the sum is 13.

The spelling of 1202011102021 in words is "one trillion, two hundred two billion, eleven million, one hundred two thousand, twenty-one".