121222012010 has 48 divisors (see below), whose sum is σ = 239887418400. Its totient is φ = 44071880160.

The previous prime is 121222012001. The next prime is 121222012057. The reversal of 121222012010 is 10210222121.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10955861 + ... + 10966919.

It is an arithmetic number, because the mean of its divisors is an integer number (4997654550).

Almost surely, 2^121222012010 is an apocalyptic number.

121222012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222012010 is a deficient number, since it is larger than the sum of its proper divisors (118665406390).

121222012010 is a wasteful number, since it uses less digits than its factorization.

121222012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20147 (or 20136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121222012010 its reverse (10210222121), we get a palindrome (131432234131).

The spelling of 121222012010 in words is "one hundred twenty-one billion, two hundred twenty-two million, twelve thousand, ten".