210121100201130 has 128 divisors (see below), whose sum is σ = 509984197632000. Its totient is φ = 55400824848384.

The previous prime is 210121100201009. The next prime is 210121100201137. The reversal of 210121100201130 is 31102001121012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (210121100201137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16690842876 + ... + 16690855464.

It is an arithmetic number, because the mean of its divisors is an integer number (3984251544000).

Almost surely, 2^{210121100201130} is an apocalyptic number.

210121100201130 is an abundant number, since it is smaller than the sum of its proper divisors (299863097430870).

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

210121100201130 is a wasteful number, since it uses less digits than its factorization.

210121100201130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17808.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 210121100201130 its reverse (31102001121012), we get a palindrome (241223101322142).

The spelling of 210121100201130 in words is "two hundred ten trillion, one hundred twenty-one billion, one hundred million, two hundred one thousand, one hundred thirty".