1021202102210 has 8 divisors (see below), whose sum is σ = 1838163783996. Its totient is φ = 408480840880.

The previous prime is 1021202102119. The next prime is 1021202102233. The reversal of 1021202102210 is 122012021201.

It can be written as a sum of positive squares in 2 ways, for example, as 992575830961 + 28626271249 = 996281^2 + 169193^2 .

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, 51060105101 + ... + 51060105120.

Almost surely, 2^{1021202102210} is an apocalyptic number.

1021202102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021202102210 is a deficient number, since it is larger than the sum of its proper divisors (816961681786).

1021202102210 is a wasteful number, since it uses less digits than its factorization.

1021202102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102120210228.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021202102210 its reverse (122012021201), we get a palindrome (1143214123411).

The spelling of 1021202102210 in words is "one trillion, twenty-one billion, two hundred two million, one hundred two thousand, two hundred ten".