120021100202 has 4 divisors (see below), whose sum is σ = 180031650306. Its totient is φ = 60010550100.

The previous prime is 120021100153. The next prime is 120021100217. The reversal of 120021100202 is 202001120021.

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., 89640958801 + 30380141401 = 299401^2 + 174299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30005275049 + ... + 30005275052.

Almost surely, 2^120021100202 is an apocalyptic number.

120021100202 is a deficient number, since it is larger than the sum of its proper divisors (60010550104).

120021100202 is an equidigital number, since it uses as much as digits as its factorization.

120021100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60010550103.

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

Adding to 120021100202 its reverse (202001120021), we get a palindrome (322022220223).

The spelling of 120021100202 in words is "one hundred twenty billion, twenty-one million, one hundred thousand, two hundred two".