121001020106 has 8 divisors (see below), whose sum is σ = 182021592900. Its totient is φ = 60327155808.

The previous prime is 121001020099. The next prime is 121001020111. The reversal of 121001020106 is 601020100121.

It can be written as a sum of positive squares in 2 ways, for example, as 93657421225 + 27343598881 = 306035^2 + 165359^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86676251 + ... + 86677646.

Almost surely, 2^121001020106 is an apocalyptic number.

121001020106 is a deficient number, since it is larger than the sum of its proper divisors (61020572794).

121001020106 is a wasteful number, since it uses less digits than its factorization.

121001020106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173354248.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121001020106 its reverse (601020100121), we get a palindrome (722021120227).

The spelling of 121001020106 in words is "one hundred twenty-one billion, one million, twenty thousand, one hundred six".