101021020202 has 8 divisors (see below), whose sum is σ = 155227421412. Its totient is φ = 49278546400.

The previous prime is 101021020171. The next prime is 101021020211. The reversal of 101021020202 is 202020120101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101008916761 + 12103441 = 317819^2 + 3479^2 .

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, 615981749 + ... + 615981912.

Almost surely, 2^101021020202 is an apocalyptic number.

101021020202 is a deficient number, since it is larger than the sum of its proper divisors (54206401210).

101021020202 is a wasteful number, since it uses less digits than its factorization.

101021020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231963704.

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

Adding to 101021020202 its reverse (202020120101), we get a palindrome (303041140303).

The spelling of 101021020202 in words is "one hundred one billion, twenty-one million, twenty thousand, two hundred two".