1212201022210 has 32 divisors (see below), whose sum is σ = 2277750004992. Its totient is φ = 463611192000.

The previous prime is 1212201022171. The next prime is 1212201022259. The reversal of 1212201022210 is 122201022121.

It is a happy number.

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, 494166 + ... + 1633585.

It is an arithmetic number, because the mean of its divisors is an integer number (71179687656).

Almost surely, 2^{1212201022210} is an apocalyptic number.

1212201022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212201022210 is a deficient number, since it is larger than the sum of its proper divisors (1065548982782).

1212201022210 is a wasteful number, since it uses less digits than its factorization.

1212201022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130258.

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

Adding to 1212201022210 its reverse (122201022121), we get a palindrome (1334402044331).

The spelling of 1212201022210 in words is "one trillion, two hundred twelve billion, two hundred one million, twenty-two thousand, two hundred ten".