121002022010 has 16 divisors (see below), whose sum is σ = 217863689472. Its totient is φ = 48387464400.

The previous prime is 121002021979. The next prime is 121002022013. The reversal of 121002022010 is 10220200121.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121002021982 and 121002022000.

It is not an unprimeable number, because it can be changed into a prime (121002022013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629926 + ... + 1702545.

It is an arithmetic number, because the mean of its divisors is an integer number (13616480592).

Almost surely, 2^121002022010 is an apocalyptic number.

121002022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121002022010 is a deficient number, since it is larger than the sum of its proper divisors (96861667462).

121002022010 is a wasteful number, since it uses less digits than its factorization.

121002022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336109.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121002022010 its reverse (10220200121), we get a palindrome (131222222131).

The spelling of 121002022010 in words is "one hundred twenty-one billion, two million, twenty-two thousand, ten".