1200202120210 has 32 divisors (see below), whose sum is σ = 2168125308720. Its totient is φ = 478356661248.

The previous prime is 1200202120199. The next prime is 1200202120231. The reversal of 1200202120210 is 120212020021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 416539869201 + 783662251009 = 645399^2 + 885247^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17807134 + ... + 17874406.

Almost surely, 2^{1200202120210} is an apocalyptic number.

1200202120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200202120210 is a deficient number, since it is larger than the sum of its proper divisors (967923188510).

1200202120210 is a wasteful number, since it uses less digits than its factorization.

1200202120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73662.

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

Adding to 1200202120210 its reverse (120212020021), we get a palindrome (1320414140231).

The spelling of 1200202120210 in words is "one trillion, two hundred billion, two hundred two million, one hundred twenty thousand, two hundred ten".