121202112102019 has 16 divisors (see below), whose sum is σ = 134092016906400. Its totient is φ = 108837368490240.

The previous prime is 121202112101951. The next prime is 121202112102103. The reversal of 121202112102019 is 910201211202121.

It is a de Polignac number, because none of the positive numbers 2^k-121202112102019 is a prime.

It is a super-2 number, since 2×121202112102019² (a number of 29 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 = 121202112101984 and 121202112102002.

It is not an unprimeable number, because it can be changed into a prime (121202112112019) 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, 325596337 + ... + 325968370.

It is an arithmetic number, because the mean of its divisors is an integer number (8380751056650).

Almost surely, 2^{121202112102019} is an apocalyptic number.

121202112102019 is a deficient number, since it is larger than the sum of its proper divisors (12889904804381).

121202112102019 is a wasteful number, since it uses less digits than its factorization.

121202112102019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651565110.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 121202112102019 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred twelve million, one hundred two thousand, nineteen".