1314212220 has 36 divisors (see below), whose sum is σ = 3986444280. Its totient is φ = 350456544.

The previous prime is 1314212219. The next prime is 1314212231. The reversal of 1314212220 is 222124131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1314212193 and 1314212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3650410 + ... + 3650769.

Almost surely, 2^1314212220 is an apocalyptic number.

1314212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1314212220 is an abundant number, since it is smaller than the sum of its proper divisors (2672232060).

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

1314212220 is a wasteful number, since it uses less digits than its factorization.

1314212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7301194 (or 7301189 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1314212220 is about 36252.0650446288. The cubic root of 1314212220 is about 1095.3556860397.

Adding to 1314212220 its reverse (222124131), we get a palindrome (1536336351).

The spelling of 1314212220 in words is "one billion, three hundred fourteen million, two hundred twelve thousand, two hundred twenty".