10221002102 has 4 divisors (see below), whose sum is σ = 15331503156. Its totient is φ = 5110501050.

The previous prime is 10221002083. The next prime is 10221002149. The reversal of 10221002102 is 20120012201.

It is a happy number.

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

It is a super-3 number, since 3×10221002102³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555250524 + ... + 2555250527.

It is an arithmetic number, because the mean of its divisors is an integer number (3832875789).

Almost surely, 2^10221002102 is an apocalyptic number.

10221002102 is a deficient number, since it is larger than the sum of its proper divisors (5110501054).

10221002102 is an equidigital number, since it uses as much as digits as its factorization.

10221002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110501053.

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

Adding to 10221002102 its reverse (20120012201), we get a palindrome (30341014303).

The spelling of 10221002102 in words is "ten billion, two hundred twenty-one million, two thousand, one hundred two".