121020221001210 has 32 divisors (see below), whose sum is σ = 290519527649472. Its totient is φ = 32264170350720.

The previous prime is 121020221001187. The next prime is 121020221001241. The reversal of 121020221001210 is 12100122020121.

121020221001210 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121020221001210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492911659 + ... + 493157118.

It is an arithmetic number, because the mean of its divisors is an integer number (9078735239046).

Almost surely, 2^{121020221001210} is an apocalyptic number.

121020221001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020221001210 is an abundant number, since it is smaller than the sum of its proper divisors (169499306648262).

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

121020221001210 is a wasteful number, since it uses less digits than its factorization.

121020221001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986072878.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121020221001210 its reverse (12100122020121), we get a palindrome (133120343021331).

The spelling of 121020221001210 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-one million, one thousand, two hundred ten".