201001021110 has 48 divisors (see below), whose sum is σ = 536727059856. Its totient is φ = 52151615424.

The previous prime is 201001021103. The next prime is 201001021139. The reversal of 201001021110 is 11120100102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201001021092 and 201001021101.

It is a congruent number.

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, 30177004 + ... + 30183663.

It is an arithmetic number, because the mean of its divisors is an integer number (11181813747).

Almost surely, 2^201001021110 is an apocalyptic number.

201001021110 is an abundant number, since it is smaller than the sum of its proper divisors (335726038746).

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

201001021110 is a wasteful number, since it uses less digits than its factorization.

201001021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60360717 (or 60360714 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201001021110 its reverse (11120100102), we get a palindrome (212121121212).

It can be divided in two parts, 2010010 and 21110, that added together give a triangular number (2031120 = T₂₀₁₅).

The spelling of 201001021110 in words is "two hundred one billion, one million, twenty-one thousand, one hundred ten".