2101020120202 has 8 divisors (see below), whose sum is σ = 3151899367236. Its totient is φ = 1050386997792.

The previous prime is 2101020120193. The next prime is 2101020120271. The reversal of 2101020120202 is 2020210201012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1495115117001 + 605905003201 = 1222749^2 + 778399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61509813 + ... + 61543960.

Almost surely, 2^{2101020120202} is an apocalyptic number.

2101020120202 is a deficient number, since it is larger than the sum of its proper divisors (1050879247034).

2101020120202 is a wasteful number, since it uses less digits than its factorization.

2101020120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123062312.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2101020120202 its reverse (2020210201012), we get a palindrome (4121230321214).

It can be divided in two parts, 2101020 and 120202, that added together give a palindrome (2221222).

The spelling of 2101020120202 in words is "two trillion, one hundred one billion, twenty million, one hundred twenty thousand, two hundred two".