2101222120202 has 8 divisors (see below), whose sum is σ = 3153414637956. Its totient is φ = 1050083907552.

The previous prime is 2101222120163. The next prime is 2101222120223. The reversal of 2101222120202 is 2020212221012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2059193430121 + 42028690081 = 1434989^2 + 205009^2 .

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, 263571293 + ... + 263579264.

Almost surely, 2^{2101222120202} is an apocalyptic number.

2101222120202 is a deficient number, since it is larger than the sum of its proper divisors (1052192517754).

2101222120202 is a wasteful number, since it uses less digits than its factorization.

2101222120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527152552.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2101222120202 its reverse (2020212221012), we get a palindrome (4121434341214).

The spelling of 2101222120202 in words is "two trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred two".