1220020121102 has 8 divisors (see below), whose sum is σ = 1838703311112. Its totient is φ = 607119017400.

The previous prime is 1220020121059. The next prime is 1220020121107. The reversal of 1220020121102 is 2011210200221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020121107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445521049 + ... + 1445521892.

It is an arithmetic number, because the mean of its divisors is an integer number (229837913889).

Almost surely, 2^{1220020121102} is an apocalyptic number.

1220020121102 is a deficient number, since it is larger than the sum of its proper divisors (618683190010).

1220020121102 is a wasteful number, since it uses less digits than its factorization.

1220020121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891043154.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220020121102 its reverse (2011210200221), we get a palindrome (3231230321323).

The spelling of 1220020121102 in words is "one trillion, two hundred twenty billion, twenty million, one hundred twenty-one thousand, one hundred two".