21122211010219 has 16 divisors (see below), whose sum is σ = 23386257812736. Its totient is φ = 18917454808800.

The previous prime is 21122211010207. The next prime is 21122211010231. The reversal of 21122211010219 is 91201011222112.

It is an interprime number because it is at equal distance from previous prime (21122211010207) and next prime (21122211010231).

It is a cyclic number.

It is not a de Polignac number, because 21122211010219 - 2³¹ = 21120063526571 is a prime.

It is a super-2 number, since 2×21122211010219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21122211010193 and 21122211010202.

It is not an unprimeable number, because it can be changed into a prime (21122211010919) 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, 49361007 + ... + 49787080.

It is an arithmetic number, because the mean of its divisors is an integer number (1461641113296).

Almost surely, 2^{21122211010219} is an apocalyptic number.

21122211010219 is a deficient number, since it is larger than the sum of its proper divisors (2264046802517).

21122211010219 is a wasteful number, since it uses less digits than its factorization.

21122211010219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99148386.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 21122211010219 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred eleven million, ten thousand, two hundred nineteen".