121220302001004 has 144 divisors (see below), whose sum is σ = 318489301192608. Its totient is φ = 40314964750848.

The previous prime is 121220302000951. The next prime is 121220302001017. The reversal of 121220302001004 is 400100203022121.

It is a happy number.

It is a super-2 number, since 2×121220302001004² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1156927962 + ... + 1157032734.

It is an arithmetic number, because the mean of its divisors is an integer number (2211731258282).

Almost surely, 2^{121220302001004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121220302001004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159244650596304).

121220302001004 is an abundant number, since it is smaller than the sum of its proper divisors (197268999191604).

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

121220302001004 is a wasteful number, since it uses less digits than its factorization.

121220302001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107486 (or 107472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121220302001004 its reverse (400100203022121), we get a palindrome (521320505023125).

The spelling of 121220302001004 in words is "one hundred twenty-one trillion, two hundred twenty billion, three hundred two million, one thousand, four".