121020001122010 has 16 divisors (see below), whose sum is σ = 217854949430376. Its totient is φ = 48403789913088.

The previous prime is 121020001121969. The next prime is 121020001122017. The reversal of 121020001122010 is 10221100020121.

It can be written as a sum of positive squares in 4 ways, for example, as 75934510549681 + 45085490572329 = 8714041^2 + 6714573^2 .

It is not an unprimeable number, because it can be changed into a prime (121020001122017) 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, 526196247 + ... + 526426186.

Almost surely, 2^{121020001122010} is an apocalyptic number.

121020001122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020001122010 is a deficient number, since it is larger than the sum of its proper divisors (96834948308366).

121020001122010 is a wasteful number, since it uses less digits than its factorization.

121020001122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052633937.

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

Adding to 121020001122010 its reverse (10221100020121), we get a palindrome (131241101142131).

The spelling of 121020001122010 in words is "one hundred twenty-one trillion, twenty billion, one million, one hundred twenty-two thousand, ten".