21020402314214 has 16 divisors (see below), whose sum is σ = 33191903796480. Its totient is φ = 9956494211400.

The previous prime is 21020402314169. The next prime is 21020402314231. The reversal of 21020402314214 is 41241320402012.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14244962 + ... + 15651189.

It is an arithmetic number, because the mean of its divisors is an integer number (2074493987280).

Almost surely, 2^{21020402314214} is an apocalyptic number.

21020402314214 is a deficient number, since it is larger than the sum of its proper divisors (12171501482266).

21020402314214 is a wasteful number, since it uses less digits than its factorization.

21020402314214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29914675.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21020402314214 its reverse (41241320402012), we get a palindrome (62261722716226).

The spelling of 21020402314214 in words is "twenty-one trillion, twenty billion, four hundred two million, three hundred fourteen thousand, two hundred fourteen".