20110121662 has 8 divisors (see below), whose sum is σ = 31138252992. Its totient is φ = 9730704000.

The previous prime is 20110121657. The next prime is 20110121671. The reversal of 20110121662 is 26612101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162178339 + ... + 162178462.

It is an arithmetic number, because the mean of its divisors is an integer number (3892281624).

Almost surely, 2^20110121662 is an apocalyptic number.

20110121662 is a deficient number, since it is larger than the sum of its proper divisors (11028131330).

20110121662 is a wasteful number, since it uses less digits than its factorization.

20110121662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324356834.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 20110121662 its reverse (26612101102), we get a palindrome (46722222764).

The spelling of 20110121662 in words is "twenty billion, one hundred ten million, one hundred twenty-one thousand, six hundred sixty-two".