121222010021010 has 32 divisors (see below), whose sum is σ = 290949780401280. Its totient is φ = 32323985299968.

The previous prime is 121222010020927. The next prime is 121222010021011. The reversal of 121222010021010 is 10120010222121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (121222010021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117229087 + ... + 118258626.

It is an arithmetic number, because the mean of its divisors is an integer number (9092180637540).

Almost surely, 2^{121222010021010} is an apocalyptic number.

121222010021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222010021010 is an abundant number, since it is smaller than the sum of its proper divisors (169727770380270).

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

121222010021010 is a wasteful number, since it uses less digits than its factorization.

121222010021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235504882.

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

Adding to 121222010021010 its reverse (10120010222121), we get a palindrome (131342020243131).

The spelling of 121222010021010 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, ten million, twenty-one thousand, ten".