210022140 has 48 divisors (see below), whose sum is σ = 588839328. Its totient is φ = 55931904.

The previous prime is 210022133. The next prime is 210022171. The reversal of 210022140 is 41220012.

It is a Harshad number since it is a multiple of its sum of digits (12).

210022140 is a modest number, since divided by 22140 gives 2100 as remainder.

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, 55344 + ... + 59016.

It is an arithmetic number, because the mean of its divisors is an integer number (12267486).

Almost surely, 2^210022140 is an apocalyptic number.

210022140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210022140 is an abundant number, since it is smaller than the sum of its proper divisors (378817188).

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

210022140 is a wasteful number, since it uses less digits than its factorization.

210022140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638 (or 4636 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 210022140 is about 14492.1406286304. The cubic root of 210022140 is about 594.4130831823.

Adding to 210022140 its reverse (41220012), we get a palindrome (251242152).

The spelling of 210022140 in words is "two hundred ten million, twenty-two thousand, one hundred forty".