122121210010 has 8 divisors (see below), whose sum is σ = 219818178036. Its totient is φ = 48848484000.

The previous prime is 122121210007. The next prime is 122121210031. The reversal of 122121210010 is 10012121221.

It can be written as a sum of positive squares in 2 ways, for example, as 121280152009 + 841058001 = 348253^2 + 29001^2 .

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, 6106060491 + ... + 6106060510.

Almost surely, 2^122121210010 is an apocalyptic number.

122121210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121210010 is a deficient number, since it is larger than the sum of its proper divisors (97696968026).

122121210010 is a wasteful number, since it uses less digits than its factorization.

122121210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212121008.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122121210010 its reverse (10012121221), we get a palindrome (132133331231).

The spelling of 122121210010 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, ten".