121012021006 has 8 divisors (see below), whose sum is σ = 181524511080. Its totient is φ = 60503850648.

The previous prime is 121012020973. The next prime is 121012021007. The reversal of 121012021006 is 600120210121.

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 (121012021007) 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, 1008961 + ... + 1122508.

It is an arithmetic number, because the mean of its divisors is an integer number (22690563885).

Almost surely, 2^121012021006 is an apocalyptic number.

121012021006 is a deficient number, since it is larger than the sum of its proper divisors (60512490074).

121012021006 is a wasteful number, since it uses less digits than its factorization.

121012021006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159858.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121012021006 its reverse (600120210121), we get a palindrome (721132231127).

The spelling of 121012021006 in words is "one hundred twenty-one billion, twelve million, twenty-one thousand, six".