201101002120 has 32 divisors (see below), whose sum is σ = 457928795520. Its totient is φ = 79471238080.

The previous prime is 201101002117. The next prime is 201101002153. The reversal of 201101002120 is 21200101102.

It is a super-2 number, since 2×201101002120² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 201101002097 and 201101002106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30282976 + ... + 30289615.

It is an arithmetic number, because the mean of its divisors is an integer number (14310274860).

Almost surely, 2^201101002120 is an apocalyptic number.

201101002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201101002120 is an abundant number, since it is smaller than the sum of its proper divisors (256827793400).

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

201101002120 is a wasteful number, since it uses less digits than its factorization.

201101002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60572685 (or 60572681 counting only the distinct ones).

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

Adding to 201101002120 its reverse (21200101102), we get a palindrome (222301103222).

The spelling of 201101002120 in words is "two hundred one billion, one hundred one million, two thousand, one hundred twenty".