2101224142 has 8 divisors (see below), whose sum is σ = 3153965976. Its totient is φ = 1049902152.

The previous prime is 2101224137. The next prime is 2101224143. The reversal of 2101224142 is 2414221012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101224143) 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, 351253 + ... + 357184.

It is an arithmetic number, because the mean of its divisors is an integer number (394245747).

Almost surely, 2^2101224142 is an apocalyptic number.

2101224142 is a deficient number, since it is larger than the sum of its proper divisors (1052741834).

2101224142 is a wasteful number, since it uses less digits than its factorization.

2101224142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709922.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2101224142 is about 45839.1114878986. Note that the first 3 decimals coincide. The cubic root of 2101224142 is about 1280.8279437556.

Adding to 2101224142 its reverse (2414221012), we get a palindrome (4515445154).

It can be divided in two parts, 21012 and 24142, that added together give a palindrome (45154).

The spelling of 2101224142 in words is "two billion, one hundred one million, two hundred twenty-four thousand, one hundred forty-two".