10202210101021 has 2 divisors, whose sum is σ = 10202210101022. Its totient is φ = 10202210101020.

The previous prime is 10202210100977. The next prime is 10202210101033. The reversal of 10202210101021 is 12010101220201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9404250223225 + 797959877796 = 3066635^2 + 893286^2 .

It is a cyclic number.

It is not a de Polignac number, because 10202210101021 - 2³¹ = 10200062617373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202210100992 and 10202210101010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10202211101021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101105050510 + 5101105050511.

It is an arithmetic number, because the mean of its divisors is an integer number (5101105050511).

Almost surely, 2^{10202210101021} is an apocalyptic number.

It is an amenable number.

10202210101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202210101021 is an equidigital number, since it uses as much as digits as its factorization.

10202210101021 is an evil number, because the sum of its binary digits is even.

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

Adding to 10202210101021 its reverse (12010101220201), we get a palindrome (22212311321222).

The spelling of 10202210101021 in words is "ten trillion, two hundred two billion, two hundred ten million, one hundred one thousand, twenty-one".