121220021011002 has 8 divisors (see below), whose sum is σ = 242440042022016. Its totient is φ = 40406673670332.

The previous prime is 121220021010973. The next prime is 121220021011007. The reversal of 121220021011002 is 200110120022121.

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

121220021011002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (121220021011007) 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, 10101668417578 + ... + 10101668417589.

It is an arithmetic number, because the mean of its divisors is an integer number (30305005252752).

Almost surely, 2^{121220021011002} is an apocalyptic number.

121220021011002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121220021011002 is a wasteful number, since it uses less digits than its factorization.

121220021011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20203336835172.

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

Adding to 121220021011002 its reverse (200110120022121), we get a palindrome (321330141033123).

The spelling of 121220021011002 in words is "one hundred twenty-one trillion, two hundred twenty billion, twenty-one million, eleven thousand, two".