21121110201195 has 32 divisors (see below), whose sum is σ = 37553100249600. Its totient is φ = 11263254139872.

The previous prime is 21121110201131. The next prime is 21121110201211. The reversal of 21121110201195 is 59110201112112.

It is not a de Polignac number, because 21121110201195 - 2⁶ = 21121110201131 is a prime.

It is a super-2 number, since 2×21121110201195² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8150125 + ... + 10424334.

It is an arithmetic number, because the mean of its divisors is an integer number (1173534382800).

Almost surely, 2^{21121110201195} is an apocalyptic number.

21121110201195 is a deficient number, since it is larger than the sum of its proper divisors (16431990048405).

21121110201195 is a wasteful number, since it uses less digits than its factorization.

21121110201195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18582896 (or 18582890 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 27.

The spelling of 21121110201195 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred ten million, two hundred one thousand, one hundred ninety-five".