21140102010 has 64 divisors (see below), whose sum is σ = 53428066560. Its totient is φ = 5342768640.

The previous prime is 21140102003. The next prime is 21140102017. The reversal of 21140102010 is 1020104112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21140102003) and next prime (21140102017).

It is not an unprimeable number, because it can be changed into a prime (21140102017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65331 + ... + 215750.

It is an arithmetic number, because the mean of its divisors is an integer number (834813540).

Almost surely, 2^21140102010 is an apocalyptic number.

21140102010 is an abundant number, since it is smaller than the sum of its proper divisors (32287964550).

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

21140102010 is a wasteful number, since it uses less digits than its factorization.

21140102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281223.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21140102010 its reverse (1020104112), we get a palindrome (22160206122).

The spelling of 21140102010 in words is "twenty-one billion, one hundred forty million, one hundred two thousand, ten".