21020221012094 has 32 divisors (see below), whose sum is σ = 31836188160000. Its totient is φ = 10408587903904.

The previous prime is 21020221012069. The next prime is 21020221012097. The reversal of 21020221012094 is 49021012202012.

It is a super-3 number, since 3×21020221012094³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020221012097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718797437 + ... + 718826679.

It is an arithmetic number, because the mean of its divisors is an integer number (994880880000).

Almost surely, 2^{21020221012094} is an apocalyptic number.

21020221012094 is a deficient number, since it is larger than the sum of its proper divisors (10815967147906).

21020221012094 is a wasteful number, since it uses less digits than its factorization.

21020221012094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36472.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 21020221012094 in words is "twenty-one trillion, twenty billion, two hundred twenty-one million, twelve thousand, ninety-four".