121221211102030 has 128 divisors (see below), whose sum is σ = 249033444589440. Its totient is φ = 42087112704000.

The previous prime is 121221211102003. The next prime is 121221211102097. The reversal of 121221211102030 is 30201112122121.

It is a junction number, because it is equal to n+sod(n) for n = 121221211101989 and 121221211102007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13874461822 + ... + 13874470558.

It is an arithmetic number, because the mean of its divisors is an integer number (1945573785855).

Almost surely, 2^{121221211102030} is an apocalyptic number.

121221211102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221211102030 is an abundant number, since it is smaller than the sum of its proper divisors (127812233487410).

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

121221211102030 is a wasteful number, since it uses less digits than its factorization.

121221211102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121221211102030 its reverse (30201112122121), we get a palindrome (151422323224151).

The spelling of 121221211102030 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred eleven million, one hundred two thousand, thirty".