1212110213210 has 16 divisors (see below), whose sum is σ = 2349629028936. Its totient is φ = 447548386368.

The previous prime is 1212110213191. The next prime is 1212110213257. The reversal of 1212110213210 is 123120112121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 960303962401 + 251806250809 = 979951^2 + 501803^2 .

It is a super-2 number, since 2×1212110213210² (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 7 ways as a sum of consecutive naturals, for example, 4661962229 + ... + 4661962488.

Almost surely, 2^{1212110213210} is an apocalyptic number.

1212110213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212110213210 is a deficient number, since it is larger than the sum of its proper divisors (1137518815726).

1212110213210 is a wasteful number, since it uses less digits than its factorization.

1212110213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9323924737.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1212110213210 its reverse (123120112121), we get a palindrome (1335230325331).

The spelling of 1212110213210 in words is "one trillion, two hundred twelve billion, one hundred ten million, two hundred thirteen thousand, two hundred ten".