121245455029 has 16 divisors (see below), whose sum is σ = 126916416000. Its totient is φ = 115608278016.

The previous prime is 121245455027. The next prime is 121245455039. The reversal of 121245455029 is 920554542121.

It is a cyclic number.

It is not a de Polignac number, because 121245455029 - 2¹ = 121245455027 is a prime.

It is a super-2 number, since 2×121245455029² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121245454982 and 121245455000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121245455027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12521812 + ... + 12531490.

It is an arithmetic number, because the mean of its divisors is an integer number (7932276000).

Almost surely, 2^121245455029 is an apocalyptic number.

It is an amenable number.

121245455029 is a deficient number, since it is larger than the sum of its proper divisors (5670960971).

121245455029 is a wasteful number, since it uses less digits than its factorization.

121245455029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11364.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 121245455029 in words is "one hundred twenty-one billion, two hundred forty-five million, four hundred fifty-five thousand, twenty-nine".