10021210202 has 4 divisors (see below), whose sum is σ = 15031815306. Its totient is φ = 5010605100.

The previous prime is 10021210187. The next prime is 10021210219. The reversal of 10021210202 is 20201212001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20201212001 = 69467 ⋅290803.

It can be written as a sum of positive squares in only one way, i.e., 9004301881 + 1016908321 = 94891^2 + 31889^2 .

It is a super-4 number, since 4×10021210202⁴ (a number of 41 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505302549 + ... + 2505302552.

Almost surely, 2^10021210202 is an apocalyptic number.

10021210202 is a deficient number, since it is larger than the sum of its proper divisors (5010605104).

10021210202 is an equidigital number, since it uses as much as digits as its factorization.

10021210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010605103.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10021210202 its reverse (20201212001), we get a palindrome (30222422203).

The spelling of 10021210202 in words is "ten billion, twenty-one million, two hundred ten thousand, two hundred two".