1212211201210 has 8 divisors (see below), whose sum is σ = 2181980162196. Its totient is φ = 484884480480.

The previous prime is 1212211201177. The next prime is 1212211201237. The reversal of 1212211201210 is 121021122121.

It can be written as a sum of positive squares in 2 ways, for example, as 1211432623801 + 778577409 = 1100651^2 + 27903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1212211201210² (a number of 25 digits) contains 22 as substring.

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, 60610560051 + ... + 60610560070.

Almost surely, 2^{1212211201210} is an apocalyptic number.

1212211201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212211201210 is a deficient number, since it is larger than the sum of its proper divisors (969768960986).

1212211201210 is a wasteful number, since it uses less digits than its factorization.

1212211201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121221120128.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212211201210 its reverse (121021122121), we get a palindrome (1333232323331).

The spelling of 1212211201210 in words is "one trillion, two hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred ten".