1220600700 has 216 divisors, whose sum is σ = 4208480640. Its totient is φ = 293443200.

The previous prime is 1220600687. The next prime is 1220600723. The reversal of 1220600700 is 70060221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1375657 + ... + 1376543.

Almost surely, 2^1220600700 is an apocalyptic number.

1220600700 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 1220600700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104240320).

1220600700 is an abundant number, since it is smaller than the sum of its proper divisors (2987879940).

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

1220600700 is a wasteful number, since it uses less digits than its factorization.

1220600700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1220600700 is about 34937.0963304050. The cubic root of 1220600700 is about 1068.7050745453.

Adding to 1220600700 its reverse (70060221), we get a palindrome (1290660921).

The spelling of 1220600700 in words is "one billion, two hundred twenty million, six hundred thousand, seven hundred".