220121121121102 has 16 divisors (see below), whose sum is σ = 338349046653072. Its totient is φ = 107339917526080.

The previous prime is 220121121121081. The next prime is 220121121121127. The reversal of 220121121121102 is 201121121121022.

It is a happy number.

220121121121102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220121121121102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220121121121102.

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, 452744533 + ... + 453230464.

It is an arithmetic number, because the mean of its divisors is an integer number (21146815415817).

Almost surely, 2^{220121121121102} is an apocalyptic number.

220121121121102 is a deficient number, since it is larger than the sum of its proper divisors (118227925531970).

220121121121102 is a wasteful number, since it uses less digits than its factorization.

220121121121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905978003.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220121121121102 its reverse (201121121121022), we get a palindrome (421242242242124).

The spelling of 220121121121102 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred two".