215201103021200 has 240 divisors, whose sum is σ = 549908802584064. Its totient is φ = 80788136140800.

The previous prime is 215201103021097. The next prime is 215201103021227. The reversal of 215201103021200 is 2120301102512.

It is a super-2 number, since 2×215201103021200² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140087672 + ... + 141615528.

Almost surely, 2^{215201103021200} is an apocalyptic number.

215201103021200 is a gapful number since it is divisible by the number (20) 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 215201103021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274954401292032).

215201103021200 is an abundant number, since it is smaller than the sum of its proper divisors (334707699562864).

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

215201103021200 is a wasteful number, since it uses less digits than its factorization.

215201103021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528250 (or 1528239 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 215201103021200 its reverse (2120301102512), we get a palindrome (217321404123712).

The spelling of 215201103021200 in words is "two hundred fifteen trillion, two hundred one billion, one hundred three million, twenty-one thousand, two hundred".