1202211000100 has 108 divisors (see below), whose sum is σ = 2869412916132. Its totient is φ = 436879308800.

The previous prime is 1202211000047. The next prime is 1202211000143. The reversal of 1202211000100 is 10001122021.

It can be written as a sum of positive squares in 6 ways, for example, as 139596387876 + 1062614612224 = 373626^2 + 1030832^2 .

It is a super-2 number, since 2×1202211000100² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18759312 + ... + 18823288.

Almost surely, 2^{1202211000100} is an apocalyptic number.

1202211000100 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 1202211000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434706458066).

1202211000100 is an abundant number, since it is smaller than the sum of its proper divisors (1667201916032).

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

1202211000100 is a wasteful number, since it uses less digits than its factorization.

1202211000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65566 (or 65548 counting only the distinct ones).

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

Adding to 1202211000100 its reverse (10001122021), we get a palindrome (1212212122121).

The spelling of 1202211000100 in words is "one trillion, two hundred two billion, two hundred eleven million, one hundred", and thus it is an aban number.