121210220202222 has 16 divisors (see below), whose sum is σ = 242674816533840. Its totient is φ = 40361010712512.

The previous prime is 121210220202199. The next prime is 121210220202233. The reversal of 121210220202222 is 222202022012121.

It is a super-2 number, since 2×121210220202222² (a number of 29 digits) contains 22 as substring.

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, 10598999197 + ... + 10599010632.

It is an arithmetic number, because the mean of its divisors is an integer number (15167176033365).

Almost surely, 2^{121210220202222} is an apocalyptic number.

121210220202222 is an abundant number, since it is smaller than the sum of its proper divisors (121464596331618).

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

121210220202222 is a wasteful number, since it uses less digits than its factorization.

121210220202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21198010787.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121210220202222 its reverse (222202022012121), we get a palindrome (343412242214343).

The spelling of 121210220202222 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty million, two hundred two thousand, two hundred twenty-two".