16121102 has 4 divisors (see below), whose sum is σ = 24181656. Its totient is φ = 8060550.

The previous prime is 16121099. The next prime is 16121107. The reversal of 16121102 is 20112161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20112161 = 2459 ⋅8179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4030274 + ... + 4030277.

It is an arithmetic number, because the mean of its divisors is an integer number (6045414).

Almost surely, 2^16121102 is an apocalyptic number.

16121102 is a deficient number, since it is larger than the sum of its proper divisors (8060554).

16121102 is an equidigital number, since it uses as much as digits as its factorization.

16121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8060553.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 16121102 is about 4015.1092139567. The cubic root of 16121102 is about 252.6183583923.

Adding to 16121102 its reverse (20112161), we get a palindrome (36233263).

The spelling of 16121102 in words is "sixteen million, one hundred twenty-one thousand, one hundred two".