201001221102 has 32 divisors (see below), whose sum is σ = 438827497344. Its totient is φ = 60870658400.

The previous prime is 201001221011. The next prime is 201001221137. The reversal of 201001221102 is 201122100102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 865593 + ... + 1072964.

It is an arithmetic number, because the mean of its divisors is an integer number (13713359292).

Almost surely, 2^201001221102 is an apocalyptic number.

201001221102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201001221102 is an abundant number, since it is smaller than the sum of its proper divisors (237826276242).

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

201001221102 is a wasteful number, since it uses less digits than its factorization.

201001221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940144.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201001221102 its reverse (201122100102), we get a palindrome (402123321204).

The spelling of 201001221102 in words is "two hundred one billion, one million, two hundred twenty-one thousand, one hundred two".