1212842210 has 16 divisors (see below), whose sum is σ = 2278034496. Its totient is φ = 464043888.

The previous prime is 1212842209. The next prime is 1212842227. The reversal of 1212842210 is 122482121.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636384 + ... + 2636843.

It is an arithmetic number, because the mean of its divisors is an integer number (142377156).

Almost surely, 2^1212842210 is an apocalyptic number.

1212842210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212842210 is a deficient number, since it is larger than the sum of its proper divisors (1065192286).

1212842210 is a wasteful number, since it uses less digits than its factorization.

1212842210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273257.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1212842210 is about 34825.8841955233. The cubic root of 1212842210 is about 1066.4359274126.

The spelling of 1212842210 in words is "one billion, two hundred twelve million, eight hundred forty-two thousand, two hundred ten".