2101421012 has 12 divisors (see below), whose sum is σ = 3679589760. Its totient is φ = 1050109656.

The previous prime is 2101420999. The next prime is 2101421039. The reversal of 2101421012 is 2101241012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142298 + ... + 156369.

It is an arithmetic number, because the mean of its divisors is an integer number (306632480).

Almost surely, 2^2101421012 is an apocalyptic number.

It is an amenable number.

2101421012 is a deficient number, since it is larger than the sum of its proper divisors (1578168748).

2101421012 is a wasteful number, since it uses less digits than its factorization.

2101421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300430 (or 300428 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2101421012 is about 45841.2588396087. The cubic root of 2101421012 is about 1280.8679440452.

Adding to 2101421012 its reverse (2101241012), we get a palindrome (4202662024).

The spelling of 2101421012 in words is "two billion, one hundred one million, four hundred twenty-one thousand, twelve".