10102120202 has 4 divisors (see below), whose sum is σ = 15153180306. Its totient is φ = 5051060100.

The previous prime is 10102120201. The next prime is 10102120261. The reversal of 10102120202 is 20202120101.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 7527471121 + 2574649081 = 86761^2 + 50741^2 .

It is not an unprimeable number, because it can be changed into a prime (10102120201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525530049 + ... + 2525530052.

Almost surely, 2^10102120202 is an apocalyptic number.

10102120202 is a deficient number, since it is larger than the sum of its proper divisors (5051060104).

10102120202 is an equidigital number, since it uses as much as digits as its factorization.

10102120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051060103.

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

Adding to 10102120202 its reverse (20202120101), we get a palindrome (30304240303).

It can be divided in two parts, 1010 and 2120202, that added together give a palindrome (2121212).

The spelling of 10102120202 in words is "ten billion, one hundred two million, one hundred twenty thousand, two hundred two".