220212121102 has 4 divisors (see below), whose sum is σ = 330318181656. Its totient is φ = 110106060550.

The previous prime is 220212121097. The next prime is 220212121109. The reversal of 220212121102 is 201121212022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212121109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55053030274 + ... + 55053030277.

It is an arithmetic number, because the mean of its divisors is an integer number (82579545414).

Almost surely, 2^220212121102 is an apocalyptic number.

220212121102 is a deficient number, since it is larger than the sum of its proper divisors (110106060554).

220212121102 is a wasteful number, since it uses less digits than its factorization.

220212121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110106060553.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220212121102 its reverse (201121212022), we get a palindrome (421333333124).

The spelling of 220212121102 in words is "two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, one hundred two".