1212070700 has 72 divisors (see below), whose sum is σ = 2721950784. Its totient is φ = 468160000.

The previous prime is 1212070661. The next prime is 1212070703. The reversal of 1212070700 is 70702121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1212070703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 412637 + ... + 415563.

It is an arithmetic number, because the mean of its divisors is an integer number (37804872).

Almost surely, 2^1212070700 is an apocalyptic number.

1212070700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212070700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360975392).

1212070700 is an abundant number, since it is smaller than the sum of its proper divisors (1509880084).

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

1212070700 is a wasteful number, since it uses less digits than its factorization.

1212070700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1212070700 is about 34814.8057584701. The cubic root of 1212070700 is about 1066.2097533080.

Adding to 1212070700 its reverse (70702121), we get a palindrome (1282772821).

The spelling of 1212070700 in words is "one billion, two hundred twelve million, seventy thousand, seven hundred".