1202202206021 has 2 divisors, whose sum is σ = 1202202206022. Its totient is φ = 1202202206020.

The previous prime is 1202202206003. The next prime is 1202202206041. The reversal of 1202202206021 is 1206022022021.

It is an a-pointer prime, because the next prime (1202202206041) can be obtained adding 1202202206021 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162795588900 + 39406617121 = 1078330^2 + 198511^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202202206021 - 2³⁴ = 1185022336837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202202205984 and 1202202206002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202202206041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601101103010 + 601101103011.

It is an arithmetic number, because the mean of its divisors is an integer number (601101103011).

Almost surely, 2^{1202202206021} is an apocalyptic number.

It is an amenable number.

1202202206021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202202206021 is an equidigital number, since it uses as much as digits as its factorization.

1202202206021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1202202206021 its reverse (1206022022021), we get a palindrome (2408224228042).

The spelling of 1202202206021 in words is "one trillion, two hundred two billion, two hundred two million, two hundred six thousand, twenty-one".