21116011151222 has 16 divisors (see below), whose sum is σ = 34127963221632. Its totient is φ = 9740855966400.

The previous prime is 21116011151159. The next prime is 21116011151237. The reversal of 21116011151222 is 22215111061112.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 21116011151191 and 21116011151200.

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, 208087223 + ... + 208188674.

It is an arithmetic number, because the mean of its divisors is an integer number (2132997701352).

Almost surely, 2^{21116011151222} is an apocalyptic number.

21116011151222 is a deficient number, since it is larger than the sum of its proper divisors (13011952070410).

21116011151222 is a wasteful number, since it uses less digits than its factorization.

21116011151222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416277863.

The product of its (nonzero) digits is 480, while the sum is 26.

The spelling of 21116011151222 in words is "twenty-one trillion, one hundred sixteen billion, eleven million, one hundred fifty-one thousand, two hundred twenty-two".