21210101102119 has 4 divisors (see below), whose sum is σ = 22457754108144. Its totient is φ = 19962448096096.

The previous prime is 21210101102087. The next prime is 21210101102131. The reversal of 21210101102119 is 91120110101212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21210101102119 - 2⁵ = 21210101102087 is a prime.

It is a super-2 number, since 2×21210101102119² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21210101102119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210101103119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623826502987 + ... + 623826503020.

It is an arithmetic number, because the mean of its divisors is an integer number (5614438527036).

Almost surely, 2^{21210101102119} is an apocalyptic number.

21210101102119 is a deficient number, since it is larger than the sum of its proper divisors (1247653006025).

21210101102119 is a wasteful number, since it uses less digits than its factorization.

21210101102119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247653006024.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 21210101102119 in words is "twenty-one trillion, two hundred ten billion, one hundred one million, one hundred two thousand, one hundred nineteen".