1212214104 has 48 divisors (see below), whose sum is σ = 3476205720. Its totient is φ = 380302080.

The previous prime is 1212214067. The next prime is 1212214109. The reversal of 1212214104 is 4014122121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212214109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 493962 + ... + 496409.

Almost surely, 2^1212214104 is an apocalyptic number.

It is an amenable number.

1212214104 is an abundant number, since it is smaller than the sum of its proper divisors (2263991616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212214104 is a wasteful number, since it uses less digits than its factorization.

1212214104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990400 (or 990393 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1212214104 is about 34816.8652236240. The cubic root of 1212214104 is about 1066.2518005565.

Adding to 1212214104 its reverse (4014122121), we get a palindrome (5226336225).

The spelling of 1212214104 in words is "one billion, two hundred twelve million, two hundred fourteen thousand, one hundred four".