120212001100 has 72 divisors (see below), whose sum is σ = 264384189440. Its totient is φ = 47436217920.

The previous prime is 120212001083. The next prime is 120212001101. The reversal of 120212001100 is 1100212021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (120212001101) 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, 10477567 + ... + 10489033.

Almost surely, 2^120212001100 is an apocalyptic number.

120212001100 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 120212001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132192094720).

120212001100 is an abundant number, since it is smaller than the sum of its proper divisors (144172188340).

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

120212001100 is a wasteful number, since it uses less digits than its factorization.

120212001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12887 (or 12880 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120212001100 its reverse (1100212021), we get a palindrome (121312213121).

The spelling of 120212001100 in words is "one hundred twenty billion, two hundred twelve million, one thousand, one hundred".