121000221031030 has 16 divisors (see below), whose sum is σ = 237600434024784. Its totient is φ = 44000080374880.

The previous prime is 121000221030991. The next prime is 121000221031037. The reversal of 121000221031030 is 30130122000121.

It is a super-2 number, since 2×121000221031030² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121000221030995 and 121000221031013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000221031037) 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, 550001004577 + ... + 550001004796.

It is an arithmetic number, because the mean of its divisors is an integer number (14850027126549).

Almost surely, 2^{121000221031030} is an apocalyptic number.

121000221031030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000221031030 is a deficient number, since it is larger than the sum of its proper divisors (116600212993754).

121000221031030 is a wasteful number, since it uses less digits than its factorization.

121000221031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100002009391.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121000221031030 its reverse (30130122000121), we get a palindrome (151130343031151).

The spelling of 121000221031030 in words is "one hundred twenty-one trillion, two hundred twenty-one million, thirty-one thousand, thirty".