202101001120 has 24 divisors (see below), whose sum is σ = 477463615524. Its totient is φ = 80840400384.

The previous prime is 202101001057. The next prime is 202101001129. The reversal of 202101001120 is 21100101202.

It can be written as a sum of positive squares in 2 ways, for example, as 201281438736 + 819562384 = 448644^2 + 28628^2 .

It is a super-3 number, since 3×202101001120³ (a number of 35 digits) contains 333 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 = 202101001097 and 202101001106.

It is not an unprimeable number, because it can be changed into a prime (202101001129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631565469 + ... + 631565788.

Almost surely, 2^202101001120 is an apocalyptic number.

202101001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101001120 is an abundant number, since it is smaller than the sum of its proper divisors (275362614404).

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

202101001120 is a wasteful number, since it uses less digits than its factorization.

202101001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263131272 (or 1263131264 counting only the distinct ones).

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

Adding to 202101001120 its reverse (21100101202), we get a palindrome (223201102322).

The spelling of 202101001120 in words is "two hundred two billion, one hundred one million, one thousand, one hundred twenty".