2221012201100 has 72 divisors (see below), whose sum is σ = 6008847575808. Its totient is φ = 692263540800.

The previous prime is 2221012201049. The next prime is 2221012201141. The reversal of 2221012201100 is 11022101222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144213872 + ... + 144229271.

Almost surely, 2^{2221012201100} is an apocalyptic number.

2221012201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221012201100 is an abundant number, since it is smaller than the sum of its proper divisors (3787835374708).

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

2221012201100 is a wasteful number, since it uses less digits than its factorization.

2221012201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288443175 (or 288443168 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221012201100 its reverse (11022101222), we get a palindrome (2232034302322).

The spelling of 2221012201100 in words is "two trillion, two hundred twenty-one billion, twelve million, two hundred one thousand, one hundred".