21121502614 has 32 divisors (see below), whose sum is σ = 33611037696. Its totient is φ = 9937092960.

The previous prime is 21121502603. The next prime is 21121502621. The reversal of 21121502614 is 41620512112.

It is a super-2 number, since 2×21121502614² (a number of 21 digits) contains 22 as substring.

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, 5382057 + ... + 5385979.

It is an arithmetic number, because the mean of its divisors is an integer number (1050344928).

Almost surely, 2^21121502614 is an apocalyptic number.

21121502614 is a deficient number, since it is larger than the sum of its proper divisors (12489535082).

21121502614 is a wasteful number, since it uses less digits than its factorization.

21121502614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 21121502614 in words is "twenty-one billion, one hundred twenty-one million, five hundred two thousand, six hundred fourteen".