121966029 has 12 divisors (see below), whose sum is σ = 176700316. Its totient is φ = 81067392.

The previous prime is 121966027. The next prime is 121966037. The reversal of 121966029 is 920669121.

It can be written as a sum of positive squares in 2 ways, for example, as 43164900 + 78801129 = 6570^2 + 8877^2 .

It is not a de Polignac number, because 121966029 - 2¹ = 121966027 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 121965984 and 121966002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121966027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17074 + ... + 23139.

Almost surely, 2^121966029 is an apocalyptic number.

It is an amenable number.

121966029 is a deficient number, since it is larger than the sum of its proper divisors (54734287).

121966029 is a wasteful number, since it uses less digits than its factorization.

121966029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40556 (or 40553 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 121966029 is about 11043.8231152079. The cubic root of 121966029 is about 495.9215279190.

It can be divided in two parts, 12196 and 6029, that added together give a square (18225 = 135²).

The spelling of 121966029 in words is "one hundred twenty-one million, nine hundred sixty-six thousand, twenty-nine".