21202213102 has 32 divisors (see below), whose sum is σ = 38865769920. Its totient is φ = 8467468800.

The previous prime is 21202213093. The next prime is 21202213127. The reversal of 21202213102 is 20131220212.

It is a happy number.

21202213102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×21202213102³ (a number of 32 digits) contains 333 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, 416977 + ... + 465052.

It is an arithmetic number, because the mean of its divisors is an integer number (1214555310).

Almost surely, 2^21202213102 is an apocalyptic number.

21202213102 is a deficient number, since it is larger than the sum of its proper divisors (17663556818).

21202213102 is a wasteful number, since it uses less digits than its factorization.

21202213102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882156.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21202213102 its reverse (20131220212), we get a palindrome (41333433314).

The spelling of 21202213102 in words is "twenty-one billion, two hundred two million, two hundred thirteen thousand, one hundred two".