19121102 has 32 divisors (see below), whose sum is σ = 38513664. Its totient is φ = 6876000.

The previous prime is 19121101. The next prime is 19121117. The reversal of 19121102 is 20112191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19121101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2774 + ... + 6777.

It is an arithmetic number, because the mean of its divisors is an integer number (1203552).

Almost surely, 2^19121102 is an apocalyptic number.

19121102 is an abundant number, since it is smaller than the sum of its proper divisors (19392562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19121102 is a wasteful number, since it uses less digits than its factorization.

19121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9584.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 19121102 is about 4372.7682307664. The cubic root of 19121102 is about 267.4058923047.

Adding to 19121102 its reverse (20112191), we get a palindrome (39233293).

It can be divided in two parts, 19 and 121102, that added together give a palindrome (121121).

The spelling of 19121102 in words is "nineteen million, one hundred twenty-one thousand, one hundred two".