101221210020202 has 8 divisors (see below), whose sum is σ = 151834087447812. Its totient is φ = 50609847537600.

The previous prime is 101221210020181. The next prime is 101221210020221. The reversal of 101221210020202 is 202020012122101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101111853482721 + 109356537481 = 10055439^2 + 330691^2 .

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, 378569199 + ... + 378836482.

Almost surely, 2^{101221210020202} is an apocalyptic number.

101221210020202 is a deficient number, since it is larger than the sum of its proper divisors (50612877427610).

101221210020202 is an equidigital number, since it uses as much as digits as its factorization.

101221210020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757472504.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101221210020202 its reverse (202020012122101), we get a palindrome (303241222142303).

The spelling of 101221210020202 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred ten million, twenty thousand, two hundred two".