1212100010 has 32 divisors (see below), whose sum is σ = 2383964352. Its totient is φ = 440052480.

The previous prime is 1212100009. The next prime is 1212100027. The reversal of 1212100010 is 100012121.

It is a Curzon 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, 62162 + ... + 79298.

It is an arithmetic number, because the mean of its divisors is an integer number (74498886).

Almost surely, 2^1212100010 is an apocalyptic number.

1212100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212100010 is a deficient number, since it is larger than the sum of its proper divisors (1171864342).

1212100010 is a wasteful number, since it uses less digits than its factorization.

1212100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17798.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1212100010 is about 34815.2266975242. The cubic root of 1212100010 is about 1066.2183475140.

Adding to 1212100010 its reverse (100012121), we get a palindrome (1312112131).

The spelling of 1212100010 in words is "one billion, two hundred twelve million, one hundred thousand, ten".